Graphics Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Graphic Image | A visual design or representation made using various methods and programs (ex. painting, drawing, shape, photograph)
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| Pixels | Small squares of color in a grid; A collection of pixels can produce an image
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| Bitmap Image | Also referred to as raster image; Are a complex image made up of pixels that usually create realistic images or photos (created with paint programs)
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| Vector Graphic | Drawing created by using a series of lines and curves that usually create images like clip art, cartoons, diagrams, maps, etc. and can be resized without loading clarity (created with drawing programs
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| Resolution | The clarity of an image, expressed as dots per inch (dpi) or pixels per inch (ppi); The higher resolution, the greater the image detail
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| Compression | Reducing the size of an image; 2 types: lossy and lossless
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| Lossless | Compression reduces the file size without losing any pixel information
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| Lossy | Compression reduces the size of an image file by removing or simplifying data that is not essential (the greater the lossy compression, the poorer the quality of the image)
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| File Formats | Tells the computer how to display, print, and process, and save the data; Dictated by the application program which created the file, and the operating system under which it was created and stored
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| GIF | Lossy raster file format that reduces the number of colors in an image (best for web pages, small icons, etc.)
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| BMP | Lossy raster file format similar to GIF
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| PNG | Lossless raster file format that preserves image detail and preserve transparency (good general purpose format)
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| TIFF | Lossless raster file that preserves image detail and preserve transparency (works best for high quality printing, files are quite large)
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| JPG | Raster file format commonly used for photographs and images (for low to medium resolution needs, or pictures that do not require transparency); Most common digital format
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| WMF | Windows meta file; Used for vector graphics
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| Aspect Ratio | Ratio of width to height; Must be maintained when image is resized to avoid distortion
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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