DigiKam Tutorials & How to...                                          By : Mohamed Malik                                 ...
ContentsDigikam : Manage your photographs like a professional with the power of open source-------------------3Reducing No...
Digikam : Manage your photographs like a professional with the power of open sourceDigikam is definitely the best image ma...
Reducing Noise Using DigikamAll DSLR camera’s noise up to some extent, this is most true for entry level and consumer leve...
Before Noise Reduction Was AppliedAfter Noise Reduction Was Applied….
How to enable fast thumbnail loading in DigiKamOne of the things that bothered me during the first few days of using Digik...
How to find duplicate images on Digikam!At the moment im unlocking digiKam’s features one by one and as im doing it i woul...
Then click the button find duplicates.When the folder is scanned it will show you pictures on the left hand side that migh...
Geotag Photos With Digikam..In digiKam, select the photo you want to geotag and choose Image -> GeolocationThis opens the ...
you want to correlate, choose Image -> Geolocation -> Correlator, then press the Load GPX File buttonand select the GPX fi...
How to geotag photos in digiKam using Google maps in digiKam 2.0 beta 2I have been unlocking digiKam’s features for someti...
Now go to album view..choose some pictures and go to image> geolocation and the goetag tool willappear. If that window sti...
How to export and import pictures to picasa web using digiKamI have been a long time user of Google Picasa…when they relea...
Select the album you want to download…choose where that album goes to give it a name and clickstart download
How to upload pictures to facebook using digiKamIn my recent article i wrote about how to download pictures from facebook ...
Here you can choose to download your own album or your friends album. If you choose your album thenwhen you click the menu...
Straighten Your Pictures Using DigikamDo you have any images where the horizon is is not straight. In my case i have many....
The you will see this window…take a look at the right…On the right you can see the menu… as main angle and fine angle…chan...
Re-compress Images Using DigikamMany people argue that pictures should always be taken using the highest JPEG setting avai...
Then click options. By default digiKam has a compression level of 75, change this setting as you wish.Please bear in mind ...
Applying Image Effects Using DigiKamDigikam can apply various image effects to images as a batch process. To do this go to...
Creating Calendars Using DigikamDid you know that you could create calendars using digiKam. It is very simple and easy to ...
When you have completed this click next in the wizard and you will be greeted with this window.The website http://www.ical...
Here you need to select the year and images. Since this is 2011 I have chosen 2011 and if you still wantto change any imag...
Remove Red Eyes From Your Pictures Using DigiKamTake a look at the picture above the eyes are blood red and the eyes look ...
It gives you many options on the left hand-sideSlower…. removes red eyes better but process is slowerStandard….the standar...
Before..After..
Batch Rename Photos In DigiKamI am someone who is very serious when it comes to file management issues. Many of my friends...
Batch Convert Your RAW Files Using DigikamDo you have a lot of RAW files that need to be converted?If you do Digikam has g...
Adding Textures To Your Images Using DigiKamMany people add textures to there images which produces very good results most...
Generating aspect ratio crops in digiKamEach and every monitor has an aspect ratio, which the ratio of the width versus th...
Optimise DigiKam’s PerformanceThere are a few things that you can do inorder to optimise the performance of digiKam when y...
Using The Time-Line View In DigiKamDigiKam comes with some useful features and among them is the time-line view. Where it ...
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Digikam

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Digikam

  1. 1. DigiKam Tutorials & How to... By : Mohamed Malik i@mohamedmalik.com www.mohamedmalik.com These tutorials are dedicated to the digiKam team, the digiKam users and most importantly everyone who reads my blog. All these tutorials are materials that I have published on my blog. Since I have written many I thought it was time that I make a PDF book. Enjoy! Please note that as I write more articles I will update this book as necessary from time to time. Permission is here by granted to share and modify any texts and screen captures that I have used. Special Thanks A very special thanks to the following people, without whom this book will not exist The Digikam Team Gilles Caulier Dmitri PopovIntroduction:Over the past few years I have been using many image managements applications, these applicationsinclude Google Picasa, DigiKam, Shotwell, F-spot and many other. At least about few months back myfavorite image management application was Google Picasa, even though I still was using digiKam at thesame time, however I never really played much with it. However when Picasa released version number3.5 they dropped support from the Linux platform, and if I was to continue to use Picasa I had to run itunder wine. This made the change for me, I never liked the idea of running applications under wine, Ionly do it when there is no alternative. Nevertheless in the place of Picasa we have a perfect alternativethat has a lot more features than Picasa. So here is my user guide and tutorials about DigiKam. I havearranged the tutorials in order that I have published on my blog.
  2. 2. ContentsDigikam : Manage your photographs like a professional with the power of open source-------------------3Reducing Noise Using Digikam-------------------------------------------------------------------------------------------------------4How to enable fast thumbnail loading in DigiKam---------------------------------------------------------------------------6How to find duplicate images on Digikam---------------------------------------------------------------------------------------7Geotag Photos With Digikam---------------------------------------------------------------------------------------------------------9How to geotag photos in digiKam using Google maps in digiKam 2.0 beta 2------------------------------------11How to export and import pictures to picasa web using digiKam---------------------------------------------------- 13How to upload pictures to facebook using digiKam------------------------------------------------------------------------ 15How to download facebook albums by using digiKam-------------------------------------------------------------------15, 16Straighten Your Pictures Using Digikam-----------------------------------------------------------------------------------------17Re-compress Images Using Digikam-----------------------------------------------------------------------------------------------19Applying Image Effects Using DigiKam------------------------------------------------------------------------------------------21Creating Calendars Using Digikam------------------------------------------------------------------------------------------------22Remove Red Eyes From Your Pictures Using DigiKam----------------------------------------------------------------------25Batch Rename Photos In DigiKam--------------------------------------------------------------------------------------------------28Batch Convert Your RAW Files Using Digikam---------------------------------------------------------------------------------29Adding Textures To Your Images Using DigiKam------------------------------------------------------------------------------30Generating aspect ratio crops in digiKam----------------------------------------------------------------------------------------31Optimise DigiKam’s Performance---------------------------------------------------------------------------------------------------32Using The Time-Line View In DigiKam---------------------------------------------------------------------------------------------33
  3. 3. Digikam : Manage your photographs like a professional with the power of open sourceDigikam is definitely the best image management tool that is available to Linux users. It support allmajor image formats, even RAW files from all major DSLR camera manufactures Canon, Nikon etc..Nevertheless it can organize collections of photographs in directory-based albums, or dynamic albumsby date, timeline, or by tags. Users can also add captions and ratings to their images, search throughthem and save searches for later use. With the plugins they can also export albums to 23hq, Facebook,Flickr, Gallery2, Google Earth’s KML files, SmugMug, Simpleviewer, burn them on CD, or create webgalleries.FeaturesDigikam provides functions for organizing, previewing, downloading and/or deleting images from digitalcameras. Basic auto-transformations can also be deployed on the fly during picture downloading. Inaddition, Digikam offers image enhancement tools through its KIPI (KDE Image Plugins Interface)framework and its own plugins, like red-eye removal, color management, image filters, or specialeffects. Digikam is the only free photo management application on Linux that can handle 16 bit/channelimages. Digital Asset Management is the mainstay of digiKam.The 0.10 version is a hallmark in development as it integrates digiKam in the KDE4/Qt4 desktopenvironment, which is now available on all major platforms as Unix-like, OS X and Windows (XP andVista). New features are: XMP metadata, DNG format read and write, database file is independent ofphoto libraries, enabling remote paths, multiple roots and offline archives, improved database withmany more metadata that can be searched, e.g. camera or lens, Marble integration for geolocation, non-modal image editor, live search boxes in both sidebars and main window, and many more.Due to these high end features that are available on Digikam it can even satisfy the most seriousphotographers or people who have tons of pictures there collection.Digikam has two views, one is the default viewer and the other is the editor view. In editor view, userscan edit the picture by using various tools which are available. In this regard, many filter such as artistic,color paint and emboss are available. By using the editor view users can apply various effects to theirpictures as well.In this manner it can be regarded as a fully fledged replacement for proprietary photomanagement tools like Apple’s Aperture and Adobe’s LightroomDue to its usefulness and popularity it has been awarded the TUX 2005 and 2008 Readers’ Choice Awardin the category Favorite Digital Photo Management Tool.
  4. 4. Reducing Noise Using DigikamAll DSLR camera’s noise up to some extent, this is most true for entry level and consumer level DSLRcamera’s. Even these cameras have very good ISO performance up to something like ISO 800.I use a nikon D3000 and its ISO performance is good upto ISO 800. ISO 1600 is good and it can be used insmaller sizes. However ISO 3200 images are very grainy and noise reduction has to be applied.If you using digiKam, digiKam has a great noise reduction tool. Double click the image that you want toreduce images and give a right click > edit, you can even press f4 on the keyboard and it will do thesame thing.After this you will be presented with the editor view. From here go to enhance and noise reduction andyou will be presented with this window.Choose from the settings or either you can choose your own settings. Here is a picture of before andafter from my tests. They are much more usable and better looking after the noise reduction has beenapplied.
  5. 5. Before Noise Reduction Was AppliedAfter Noise Reduction Was Applied….
  6. 6. How to enable fast thumbnail loading in DigiKamOne of the things that bothered me during the first few days of using Digikam is that the thumbnailloading speed was slow. Given that i have been a Picasa user for a long time. Picasa has a thumbnailloading speed like no other image management software. However this is due to the fact that Picasa isdeveloped by Google, A multibillion dollar company who has all the money in the world. NeverthlessDigikam can also load thumbnails quite fast, but still not as fast as Picasa.When you install Digikam for the first time it creates two databases, one for images which carries all theinformation about the images in your library and the second for thumbnails. By default thumbnails aregenerated as the folders are being accessed. However you can generate the thumbails by using a fewclicks with your mouse.After installing Digikam and showing it the root folder where you have kept your images it is verysimple. What you need to do is, go to tools and select the option ” Rebuild All Thumbails” and it will giveyou two options.1. Scan –this option will scan for missing thumbnails in your library and generate them.. this process isfast2. Rebuild all — this option scans all the images in your collection and generates the thumbnails– thisprocess is slow and time consuming.After running one of the above… you will feel that the thumbnails are now loaded almost instantlywhen using Digikam. Doing this is great and it increases the performance of Digikam.
  7. 7. How to find duplicate images on Digikam!At the moment im unlocking digiKam’s features one by one and as im doing it i would like to sharethem with you.Here is how to filter and locate duplicate images and look alikes on your library. If you are like me and ifyou have a huge amounts of pictures in your database then this feature is definitely worth it. However inorder to use them you need to do something first. I tried and tried to find duplicates but couldnt do itdue to this.First go to tools on digikams tools bar and from there go to “rebuild fingerprints”, just like thethumbnail generating option that i wrote last night this has two options.1. Scan… this options scan your library for missing fingerprints… fast.2. Rebuild all… this options scan all of your images for fingerprints and rebuild them…slow…When you have done that it is easy to identify duplicates from there. In the left side bar click the the icolike the wand and you will get 3 options. Here i will talk about the last option “duplicates”. When you doto the duplicates section you will get a menu like below.. where you will be asked which folder tosearch.. choose a folder
  8. 8. Then click the button find duplicates.When the folder is scanned it will show you pictures on the left hand side that might be duplicates. AndWhen you select a particular image it will show you the duplicates and look alikes. Here is an example
  9. 9. Geotag Photos With Digikam..In digiKam, select the photo you want to geotag and choose Image -> GeolocationThis opens the Edit Geographical Coordinates window containing a map. Drag the map with the mouseand zoom on a specific area to locate the exact place where the photo was taken. Alternatively, you canuse the Search field to enter the address, for example: botanic garden, berlin, germany. Hit then theSearch button, and you should see a list of found places that are marked with pins on the map. To addgeographical coordinates to the photo, click on the exact spot on the map to add a pin to the placewhere the photo was taken. You can then drag the pin with the mouse to adjust the pin’s position. Hitthen OK, and you are done.If you use a GPS device to record your track when shooting photos, you can use digiKam’s Correlatortool to geotag the images (mapping photos using a GPX file is often called geocorrelation). To do this,you have to export the recorded track from your GPS unit as a GPX file. In digiKam, select the photos
  10. 10. you want to correlate, choose Image -> Geolocation -> Correlator, then press the Load GPX File buttonand select the GPX file. Hit then the Correlate button, and digiKam does the rest. Keep in mind that forthis feature to work properly, the time on your GPS device and digital camera must be in sync. If thetime on both devices differs, you can specify the time gap in the Difference in min[utes] field.Once you’ve geotagged your photos, you can view them on the map without leaving the convenience ofdigiKam. To do this, click on the Geolocation sidebar to expand it, select the photo you want, and youshould see it on the map. digiKam even lets you choose between different map providers, includingGoogle Maps, OpenStreetMap, and MSN Maps. To switch to the desired map, choose it from the drop-down list at the bottom of the Geolocation sidebar.Adapted From : scribblesandsnaps.wordpress.com/2009/11/03/geotagging-photos-with-digikam/
  11. 11. How to geotag photos in digiKam using Google maps in digiKam 2.0 beta 2I have been unlocking digiKam’s features for sometime now and I am sharing these features with you,and today i would like to share how to geotag photos in digiKam using Google maps.At first google maps is on of the most accurate and precise maps that are available to use by the generalpublic. Digikam has two options when using maps. The first option (default) is the marble virtual globewhich uses the open street map and google maps. Open street map is good and it has many goodfeatures, however it is not just powerful enough compared to google maps, here an understanding isnecessary, it is the fact that google maps is designed by google which is a multi billion dollar companywhich has many and resources that openstreetmaps do not have. The only reason that i prefer googlemaps over open street map is that the Map of the Maldives is much more complete. In my case my hometown of inguraidhoo and many other places are not included in the open map. And this goes true formost of the places in remote areas like Maldives. However Google maps contains these remote areas.Thereby using google maps i can pin point the exact location of my pictures and geotag them moreaccurately. Here is how to use it.On the right hand side of digiKam click the tool maps and change it to google maps. See screen shotbelow.
  12. 12. Now go to album view..choose some pictures and go to image> geolocation and the goetag tool willappear. If that window still contains the marble virtual globe, then change it to google maps. See screenshot below.When the map loads drag and drop the images on to the exact location where you want them. Since thismap uses Google maps i believe that in-order to use this feature you have to be connected to theinternet.
  13. 13. How to export and import pictures to picasa web using digiKamI have been a long time user of Google Picasa…when they released picasa 3.0 for Linux..however sincethe release of picasa 3.5 they have officially stopped support for Linux systems saying that due to lowadoption, even in those day i have been using digiKam as well. However ever since then digiKam hasbeen my first choice of image managers.If you have a activated your picasa web albums using your google account then you can export andimport pictures to picasa web using digiKam..the processes is very simple.Exporting Images.In order to export images to picasa web select the images that you want to export and then go toexport menu on digiKam and the select “Export To Picasaweb”, when you select this option you will beasked to enter your google account password and username. Once you enter your credentials you willsee a window like this… see belowYou can choose to create new albums or either upload into an existing album. You can also select thethe sizes of the files that you want to upload. When you are ready press start upload.Importing Images…Importing pictures is also a simple process. Go to import>import from picasa web.If you have already entered your account information before when you were trying to export the imagesdigiKam will not ask you for any account information it will be seamless and automatic and you will seethis window.
  14. 14. Select the album you want to download…choose where that album goes to give it a name and clickstart download
  15. 15. How to upload pictures to facebook using digiKamIn my recent article i wrote about how to download pictures from facebook using digiKam. Now let uslearn how to upload pictures to facebook using digiKam.It is simple….select the images that you want to upload and export>export to facebook and you will begreeted with a new window where you will be asked to log on to facebook. Follow the on-screeninstructions and you will see this window.As you can see the process is very easy and straight forward. You can create a new album give it a name.And choose to resize the pictures into the size that you prefer and can even alter the JPG qualitysettings. When you are done just press start upload.How to download facebook albums by using digiKamNeed to download facebook albums of you or your friends. You dont need so save each and every imageindividually. Well in that case digiKam has got you covered. It is easy and fast here is how to do it.Go to import and select import from facebook.When you press it you will be asked to log in to your facebook acount or either link your facebookaccount with Digikam. Your webbrowser will pop up and give it permission to connect. Then you will begreeted with this window.
  16. 16. Here you can choose to download your own album or your friends album. If you choose your album thenwhen you click the menu named album you will see all the albums uploaded by you. If you choose todownload a friends album, then choose the name of your friend and then select the album you want todownload. As you can see on the screen shot.. you need to specify where you want to download thephotos. Select the location on your albums and and select “new album” and give it a name. And press“start download” it will download the pictures that you have selected.
  17. 17. Straighten Your Pictures Using DigikamDo you have any images where the horizon is is not straight. In my case i have many. In that case you canstraighten them using digiKam. Here is how to do it.Take a look at this picture….in definitely needs it…From the view picture either press f4 or right click on the picture and press edit to go to the editorviewFrom the editor view go to transform>free rotation
  18. 18. The you will see this window…take a look at the right…On the right you can see the menu… as main angle and fine angle…change these and you will seeeffects in real time…alter these values until you have straighten your image. Here is what i got.
  19. 19. Re-compress Images Using DigikamMany people argue that pictures should always be taken using the highest JPEG setting available,however I am someone who doesn’t believe it due to many reasons.When im shooting pictures of friends and family and other normal occasions I always keep the JPEGsetting at the basic level. In this case we have several factors that has to be taken into account. I’m notan expert in the field of photography, however this is just my personal opinion. Most cameras has JPEGsettings FINE, NORMAL & BASIC. JPEG is a lossy format meaning it is compressed. However the maindifference between JPEG FINE and all other options is that each compression eliminates colors whichare not visible to the human eye.If I’m shooting JPEG fine then I can only shoot 2300 pictures into my 16GB memory card, however at thebasic setting I can shoot 8200 pictures in the same card. For me storage matters and there is no need toshoot that high quality images when they all look the same on the computer. We only need that qualityif we are printing each and every image to a canvas, other than that I see no need.Digikam gives you the option to re-compress your images. This is useful if you have many JPEG pictureswith JPEG setting fine ( on scale 0-100). Changing the scale from 100 to 85 can significantly reduce thefile-size & look the same.Example : A 3.1 MB file at JPEG setting 100. When this image was re-compressed to a quality of 85 theimage size came just 1MB.Meaning hundred similar file will have a total of 310MB, when these hundred pictures are re-compressed to a scale of 85 you will get approximately 100Mb, in the meantime saving 210MB of harddrive space. If you have many images like I do and if you need to convert these images it will saves GB’sof hard-drive space.To re-compress your files using digiKam go to Tools>Recompress Images and a wizard will pop up.
  20. 20. Then click options. By default digiKam has a compression level of 75, change this setting as you wish.Please bear in mind that when you move the scale beyond 75 it will show degrade in image quality. In mypersonal opinion a value of 75-85 is most adequate.The same has JPEG files it can do the same for other file formats such as TIFF and PNG’s as well. Chooseeither to remove the original or to keep it. If you are doing this for the first time, I advice you to keepyour original and later take a look yourself and delete them if you wish.Note : This is just my personal opinion regarding image compression and quality. 75% of the images in myflickr photostream ( http://www.flickr.com/photos/malikdhadha) has been shot by the camera at BASICdefault setting. I only shoot high quality on when needed.
  21. 21. Applying Image Effects Using DigiKamDigikam can apply various image effects to images as a batch process. To do this go to tools menu andselect apply image effects.It gives you a few option for an example on the above screen shot the specified image effect to beapplied is “charcoal”, however that is not the only effect that is available. The screen shot below showsseveral effects which can be applied.Choose any image effect from the list. If you want to adjust the settings press the options button on theleft. I have chosen “paint”. When you are done press the preview button which give a glint of what youwill get after the process is done. Example see screen shot below. If you click “remove original” option inthe window your original files will be deleted. It is a better option to leave this off, since digiKam willcreate a new modified file, thereby leaving your original files untouched.
  22. 22. Creating Calendars Using DigikamDid you know that you could create calendars using digiKam. It is very simple and easy to do this. Firstyou need to select some photos, most preferably 12 photos so that those 12 photos corresponds to 12months in the calendar.After selecting the picture go to Tools> Create Calendar.When you do this this window will appear.Here you can alter your settings.Paper size : you have two choices standard A4 and US Letter size.Image position : set which position in which the images appear in the calendar.Draw law on calendar : meaning that you can either disable or enable the lines which appear/Image to text ration : Increase the size of the image or decrease them according to the ratio, move theslider and the preview will change as you adjust it.Set your font : choose a default font to be used.
  23. 23. When you have completed this click next in the wizard and you will be greeted with this window.The website http://www.icalshare.com has many great templates that can be used. It is free to use anddownload all you need to do is register and account with them. It includes templates which containmany information on public holidays and events of many countries. I searched this website for Maldives,however I didn’t find anything about my country here so I skipped this.If you are using Korganizer to organise your daily work and if you have marked special days like birthdaysof friends and relatives you could really use this feature. And it is a very simple process. Open upkorganizer go to file> export>calendar and save the calendar file on to your computer. Then select thefolder button on the current screen-shot and show it to the file manager and select open. This will addthat to your calendar. Then press next in the wizard. And you will see this window.
  24. 24. Here you need to select the year and images. Since this is 2011 I have chosen 2011 and if you still wantto change any images you still have the option to do it. Left click to change the image and the filemanager will pop up show it the new image and press open. If you need to clear an image give it a rightclick and the image will be cleared. And you can add any other image that you may prefer. When you aredone press next.You can either send it directly to your printer or print to a PDF file. However according to my personalopinion it will be a wise decision to print to PDF first so that you can see what you have created. If youneed to change the printer properties press “properties” here you will be able to change the pagelayout ( portrait, landscape) and the units of measurements( cm, inches px etc). By default the outputfile will be made in your home folder. If you need to change the location press the button on the rightand specify manually.When you are done press print and it will generate a 12 page PDF file exactly like a calendar.
  25. 25. Remove Red Eyes From Your Pictures Using DigiKamTake a look at the picture above the eyes are blood red and the eyes look like one of those vampires,that we see in the movie twilight and it needs to be corrected. Most of the red eyes occur into pictureswhile using the flash. Most camera’s come with an option to correct red eyes by default however eventhat fails to work some times. In either case you have nothing to worry about, digiKam has you covered.Select the pictures that you want to remove red eyes from and then go to Tools>Red-Eye RemovalFrom there you will see this window. Here you have two tabs one is the file list.And the other is settings, remember it is very important to take a look at this window and understand itbefore proceeding.
  26. 26. It gives you many options on the left hand-sideSlower…. removes red eyes better but process is slowerStandard….the standard setting are appliedFaster…means the process is faster…..i personally didn’t get good results with this optionOn the right hand sideIt gives you the option about how to rename the files. When red eye reduction is applied to a file itcreates a new file. You can add a prefix or a suffice or choose from the other options that are available.Example : if you choose prefix...If the original had a file name “malik.jpg” then the corrected file will have the following name “malikcorrected.jpg” if you choose suffix then the vice versa.If an image cannot be processed, which basically means that, red eyes cannot be removed it gives theuser a few options, first one being ask the user then keep the file in the list or remove the file in the list.I have processed many files and no such thing has occurred to me so I leave it at ask the user.On the right hand side you can see a button named “advanced mode” click this if you want to goadvanced and you will be presented with the following window. You can use these setting to make moreadjustments. When you are done adjusting click correct photos.This is not the only way to remove red eyes using digiKam…this option is very useful when you want redeyes to be removed from many pictures at once. However if you think you should do them individuallyselect the image and press f4 and this will take you to editor view. From there select the part where theeyes are red and got to enhance>red eyeRemember the picture in the top of the article here is the corrected photo…..hmm the eyes no longerlook like the ones we see it twilight!!
  27. 27. Before..After..
  28. 28. Batch Rename Photos In DigiKamI am someone who is very serious when it comes to file management issues. Many of my friends keepthere entire data on the desktop, i have advised them many times to do use the file-manager effectively.I keep my pictures in a folder named ” my pictures” in a separate partition and within that folder i haveseveral subfolders like this..Friends, Family, College etc…Within each sub folder i create new sub folders can create the name related with this. For Example :Yesterday I shot our college six a side foot ball tournament..so the name of the folder within collegefolder goes like this…College – Feb 19th 2011 Faculty Of Education Football…When i do this it becomes easy to find when needed. And i also rename the files too rather than keepingfiles like DSC0215 or something like that. Basically means that keep the file names related to the eventas well to keep it better organised. If we dont organise these files then what is the need of file-managers and picture managers. The sole purpose of these is to keep your files organized.If you want to batch rename pictures in digikam, it is very simple, digiKam’s main user interface has thisbutton by default. see screen capture below. Select the images you need to rename and click it.then you will see this window…Choose from the options when you are done…click ok.
  29. 29. Batch Convert Your RAW Files Using DigikamDo you have a lot of RAW files that need to be converted?If you do Digikam has got you covered and this saves a lot of time. As for me i don’t have time to processeach and every image separately. Here is how to convert them seamlessly and easily.Select the RAW files and go to Tools> Batch RAW Converter and the this wizard will pop-up.The wizard gives you to choose from the following settings..—8 bits or 16bits–White balance–Exposure correction, brightness–Noise reduction, chromatic abberation correction–colour management–various out put file formats such has PNG, JPEG, TIFF & PPMRemember you can alter each and every one of those settings.. when you are done applying yourpersonal touches to the images just click convert on the menu and digiKam will do the rest.
  30. 30. Adding Textures To Your Images Using DigiKamMany people add textures to there images which produces very good results most of the time. If youwant to apply textures to your image it is simple and easy. Select the image you want to add texture toand press F4 on the keyboard this will take you to editor view.From the editor view go to Decorate> Apply TextureOn the right hand side you will see the texture options available, and another option called “relief”, youcan using that option to control the amount of texture that you are applying for the texture that youchoose.
  31. 31. Generating aspect ratio crops in digiKamEach and every monitor has an aspect ratio, which the ratio of the width versus the height, digiKam canproduce these crops very easily. This is very useful if you are creating wallpapers and images to fit acertain ratio, i use this feature when i upload my wallpapers to kde-look.orgHere is how to create them..Choose the image and click f4 or right click on the image and go to edit. In the editor view to the menubar and click transform> aspect ratio crop and this window will appear.The tool has the following predefined ratios, they are1:13:24:35:47:510:7 & 5:8It also has an option named golden aspect ratio… i still havent figured out what it does or what itmeans!It also give the option of custom aspect ratio. Therefore you can choose any ratio that you may prefer.After choosing an aspect ratio hold the tiny square that you see on the edges of the highlighted areaand move to the area of the image that you want to crop any area you select will have the aspect thatyou specified.
  32. 32. Optimise DigiKam’s PerformanceThere are a few things that you can do inorder to optimise the performance of digiKam when you areusing it for the first time.1. Rebuild All Thumbnails... When digiKam starts it loads the thumbnails when ever an album is opened,most of the time this takes sometime, however you can solve this issue by generating thumbnails. To dothis go to Tools> Rebuild All Thumbnails. Depending on the amount of images on your collection thiswill take sometime.2. Rebuild All Finger Prints…..This option is a must if you want to search your images for duplicates or ifyou want to enable fuzzy searches. To do this go to Tools> Rebuild Finger Prints.3. Disable Scanning For New Images At Start up… By default digiKam scans your collections for newimages. If you feel digiKam is slow when starting up disable this option.To do this go to Setting>Configure digiKam, when the window opens go to the last option namedmiscellaneous and disable it. See screen capture below..These options will definitely improve performance and will give you a much more pleasant experiencewith digiKam…
  33. 33. Using The Time-Line View In DigiKamDigiKam comes with some useful features and among them is the time-line view. Where it shows theimages according to days, weeks, months and year. This is useful when you are trying to find a picturethat was taken at a certain date.Click on the time-line view and the following window will appear.In the screen capture I’m asking digiKam to display my images according to the month. So it displays themonths. If you take a closer look you can see that below the bar graph it has some letter “J” and “F”,here J stands for January and F for February. Meaning that it will display images taken during the monthselected. Here the year is divided into months within the time line. When you are done selecting themonth click on the red dotted square that you see surrounding the month. It will display all the imagestaken during January 2011. And it also gives you the total number of pictures taken in January 2011. Itshows that i have taken 2947 picture in that month.

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