Resolution• Bitmap images are made up of pixels. Image resolution is the number of pixels per inch (PPI) in the bitmap grid the more the pixels the better quality image is• There are two features to every bitmap image – its size meaning the width and height In inches and resolution meaning the number of pixels per inch.• Both of these factors both determine the total number of pixels in a picture
resolution• Some typical resolutions include:• 256x256 – found in many cheap cameras, this resolution makes the camera picture quality really bad almost unacceptable. This resolution holds 65,536 individual pixels.• 640x480 – this is found in low end cameras, but mainly this resolution is used for sending pictures or posting pictures on a website. This is has 307,200 pixels or 0.3 mega pixels*• 2240x1680 – this resolution is mainly found in 4 megapixel cameras (the current standard) this allows even bigger printed photos, with good quality for prints up to 16x20 inches. This resolution holds over 3 million pixels.• The top end cameras mainly use 4064x2704, this is a basic digital camera with 11.1 megapixels which takes a picture at this resolution, plus when you print a picture you can create a 13.5x9 inch print with no picture quality.• *megapixels – more than 1 million pixels
resolution• The more the pixels there are within a picture, the more detailed the image can be displayed at.• But the fewer pixels there are in an image, the less detailed the image will be displayed at.• There are two ways to show an image mainly on screen and print:• The standard for screen displays is 72 PPI.• The standard for Print is 300 PPI.
pixels• In digital imaging, a pixel is the physical point In a raster image. So it is the smallest element of picture represented on the screen. The address of a pixel resembles to its physical co-ordinates.• The term pixel is in fact short for Picture Element. These small little dots are what make up the images on digital. The screen is separated up into a matrix of thousands or even millions of pixels.