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Description:

Reduces an image to a fewer number of Bits Per Pixel, using a Bayer dithering algorithm. The target bit depth is specified by argument destDepth. In general, a color image will be reduced to a fewer number of colors, and a grayscale image will be reduced to a fewer number of shades of gray. Note that setting destDepth = 1 will reduce the image to monochrome or black-and-white.

The input number of Bits Per Pixel must be greater than destDepth, or an error will result.

Syntax:

      ReduceWithBayer (ByVal pPage As IGPage, ByVal destDepth As Long)

Parameters:

Name	Description
pPage	Reference to IGPage Object.
destDepth	Number of bits per pixel after reduction (4 or 1).

Return Value:

N/A

Bits Per Pixel:

• Input: 4, 8-bit gray level, 8i, 9-16-bit gray level, 24
• Output: 4 or 1-bit

Sample:

Image Processing and Effects

 

 

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