Image processing methods and techniques

â—† First: Levels and Contrast Adjustment * Black and White Field Calibration (Levels Tools)
* Tonal gradation adjustment (curve tool - Curves)
* Correct lack of contrast (brightness/contrast tool)
* Correct dark tone leveling (shadow/highlight tools)
* Correct midtones thickening (exposure tool)
* Correct color cast (Color Balance Tool - Color Balance)

â—† Second: Color Adjustment * Correct Hue and Saturation (Hue/Saturature)
* Strengthen or weaken color saturation (Slelective Color) certification * Local correction of light and dark (lightening, deepening, and sponge tools)

â—† Again: Sharpness Adjustment * Enhanced Sharpness (Unsharp Mask)
* Decreased sharpness (Fuzzy tool - Gaussin blur)
Due to the poor whiteness and lack of gloss of the newspapers, attention should be paid to the image processing:
(1) The overall contrast to do (2) in the main highlight, dark tone as the auxiliary (3) Bright and bright color printing accessories, basic color saturation (4) sharpening, clarity to do enough