Syntax
VARIANT GetImageHistogram (LONG ColorMode)
Description
GetImageHistogram() computes the histogram of the submitted image. The histogram always contains 256 values per channel. For color modes with a bit depth of more than 8 bits, the system evaluates the 8 most significant bits (MSBs).
Parameters
ColorMode |
Color mode of the image with the nID memory ID For a list of all available color formats and the associated input parameters, see SetColorMode() |
Return values
<VARIANT array of DWORD variables> |
Histogram values for the last image captured. The histogram contains 3*256 values for color formats and in raw Bayer mode. In monochrome mode, the array must contains 1*256 values. |
<empty VARIANT array> |
An error occurred. |
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