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Compression Ratios
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A numeric relationships used to calibrate different image file sizes, such as 1:2, 1:4, 1:7, 1:12, etc. As the ratio increases the quality of the image decreases, causing artifacting, or degradation of the image. A compression of 1:4 will provide a sharp image with no loss of quality. The size of the compressed image will change according to the subject within the image.
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