1. Adult Education Digital Photography

3. Vocabulary Term Definition Pixel the smallest discrete component of an image or picture on a CRT screen (usually a colored dot); "the greater the number of pixels per inch the greater the resolution" wordnetweb.princeton.edu/perl/webwn Megapixel A megapixel is equal to one million pixels (picture elements). Digital images are made up of thousands of these tiny, tile-like picture elements. www.digicamhelp.com/glossary/digital-photography-glossary/ Ppi Pixels per inch is part of how you would define the resolution of an object that is screen-based. Some use DPI and PPI interchangeably, though this is technically incorrect. creativecurio.com/graphic-design-glossary/ Dpi Dots Per Inch is a term that also refers to printing and the amount of ink that actually is placed upon the print medium. Dots Per Inch is a property of a print graphic and determines how it prints - its size and quality. ... www.d.umn.edu/itss/support/Training/Online/webdesign/glossary/d.html

4. Vocabulary Term Definition Aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. ... en.wikipedia.org/wiki/Aperture F-stop In optics, the f-number (sometimes called focal ratio, f-ratio, or relative aperture) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; in simpler terms, the f-number is the focal length divided by the "effective" aperture diameter. ... en.wikipedia.org/wiki/F-Stop Great Website http://www.uscoles.com/fstop.htm Shutter speed The length of time during which the camera shutter remains open. These speeds are expressed in seconds or fractions of a second. ie: 2, 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/8000. Each speed increment halves the amount of light. medianetcom.com/divermag/archives/dec96/glossary.html

5. Term Definition ISO Film speed or how sensitive the sensor/film is to light - http://en.wikipedia.org/wiki/ISO_speed White balance In photography and image processing, color balance is the global adjustment of the intensities of the colors (typically red, green, and blue primary colors). ... en.wikipedia.org/wiki/White_balance Adjusts the brightest part of a scene so it appears white. How a digital camera records color is affected by the source of light www.digicamhelp.com/glossary/digital-photography-glossary/ Jpg In computing, JPEG (, ) (named after the Joint Photographic Experts Group who created the standard) is a commonly used method of lossy compression for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. ... en.wikipedia.org/wiki/.JPG Gif The Graphics Interchange Format (GIF) is a bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability. en.wikipedia.org/wiki/.gif Tif (tiff) Bmp Png Filesize

6. Term Definition Tif (tiff) Tagged Image File Format (abbreviated TIFF) is a file format for storing images, including photographs and line art. As of 2009, it is under the control of Adobe Systems. ... en.wikipedia.org/wiki/TIF Bmp The BMP file format, sometimes called bitmap or DIB file format (for device-independent bitmap), is an image file format used to store bitmap digital images, especially on Microsoft Windows and OS/2 operating systems. en.wikipedia.org/wiki/.bmp Png Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license. It is or spelled out as P-N-G. ... en.wikipedia.org/wiki/.png Filesize Size of the image in bytes. To convert to kilobytes, divide by 1000. To convert to megabytes, divide by 1000000. www.dcresource.com/reviews/exif_key.html

10. Term Definition Local Contrast Applying contrast selectively to increase contrast locally without increasing the overall contrast to unacceptable levels and maintaining dymanic range. http://visual-vacations.com/Photography/local_vs_global_contrast.htm Saturation Measuring the amount of color being reflected. http://www.starephotography.com/articles/colorsaturation/index.php Temperature Color temperature is the main way in which we measure the different colors and color correction is about filtration and other techniques that we as photographers use to achieve a desired color effect. http://www.aeimages.com/learn/color-correction.html Neutral Picker A tool in Picasa that help pick a neutral temperature and saturation. Sharpen Adjusting color and the above items to make images “appear” less blurry.

11. Term Definition Exposure In photography, exposure is the total amount of light allowed to fall on the photographic medium (photographic film or image sensor) during the process of taking a photograph. Exposure is measured in lux seconds, and can be computed from exposure value (EV) and scene luminance over a specified area. en.wikipedia.org/wiki/Exposure_(photography) Contrast Contrast in photography is the difference between dark and light. But it doesn’t end there It also refers to contrasts created with colour, tones and texture. We “see” these only because of light. http://www.digital-photography-school.com/getting-better-contrast-in-your-photography#ixzz1Faa6qsv3 Highlights Tagged Image File Format (abbreviated TIFF) is a file format for storing images, including photographs and line art. As of 2009, it is under the control of Adobe Systems. ... en.wikipedia.org/wiki/TIF Shadows The opposite of highlight Histogram A chart displaying the tonal ranges present in an image as a series of vertical bars. www.globalimaginginc.com/resources/glossary.shtml