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This mode uses up to 256 shades of gray. Every pixel of a
grayscale image has a brightness value ranging from 0 (black) to 255 (white).
Grayscale values can also be measured as percentages of black ink coverage (0%
is equal to white, 100% to black). Images produced using black-and-white or
grayscale scanners typically are displayed in Grayscale mode.
Although
Grayscale is a standard color model, the exact range of grays represented can
vary, depending on the printing conditions.
These guidelines apply to converting images
to and from Grayscale mode:
• You can convert both Bitmap-mode and color images to grayscale.
• To convert a color image to a high-quality grayscale image, APE
discards all color information in the original image.
• The gray levels
(shades) of the converted pixels represent the luminosity of the original
pixels.
Simply click on Grayscale control to make changes of your photo.
Resize filter | Brightness / Contrast filter | RGB filter | Grayscale
filter | Blur filter | Motion blur filter
Soften filter | Sharpen
filter | Emboss filter | Dilate filter | Erode
filter | Colorize filter | HSL filter
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