(PHP 4 >= 4.0.6)
ImageCopyMergeGray -- Copy and merge part of an image with gray scale
Description
int ImageCopyMergeGray (resource dst_im, resource src_im, int dst_x,
int dst_y, int src_x, int src_y, int src_w, int src_h, int pct)
ImageCopyMergeGray() copy a part of src_im onto
dst_im starting at the x,y coordinates src_x, src_y with a
width of src_w and a height of src_h. The portion defined will be
copied onto the x,y coordinates, dst_x and dst_y. The two images
will be merged according to pct which can range from 0 to 100. When
pct = 0, no action is taken, when 100 this function behaves identically to
ImageCopy().
This function is identical to ImageCopyMerge() except that when merging it
preservese the hue of the source by converting the destination pixels to gray scale before the copy
operation.
Note: This function was added in PHP 4.0.6
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