Epson ActionScanner II PC User Manual - TWAIN Mac - Page 69
Gamma Correction and Gamma Correction Comparison., Opens the Gamma
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Shadow Comparison. Allows you to compare three or five image samples of varying shadow intensity or color. The middle sample reflects the current shadow setting. Sharpness Comparison. Allows you to compare three or five image samples of varying sharpness. The middle sample reflects the current sharpness setting. Threshold Comparison. Allows you to compare three or five image samples of varying black and white contrast. The middle sample reflects the current threshold setting. Gamma Correction and Gamma Correction Comparison. Opens the Gamma Correction dialog box, which contains settings for adjusting gamma levels when you want to alter the midtones, highlights, and shadows in an image. This lets you more accurately modify an image to reflect the tones in the original and bring out the details in shadow areas. The Gamma Comparison icon allows you to compare three or five image samples of varying tonal quality. The middle sample reflects the current gamma adjustment. Icon Glossary 3