JCL Help:TJclByteMap.ReadFrom

 JCL Help: TJclByteMap.ReadFrom Method

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Summary

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Pascal

 public procedure ReadFrom(Source: TJclBitmap32; Conversion: TConversionKind);

Description

ReadFrom allows reading and converting data from TJclBitmap32 objects into the byte map.
First, the byte map is resized to fit the Source bitmap dimensions, then the 32-bit RGBA color is transformed to 8-bits depending on the conversion type:
Conversion Action------------ ---------------------------------------------------ctRed Copies red channel ctGreen Copies green channel ctBlue Copies blue channel ctAlpha Copies alpha channel ctUniformRGB Copies averaged value: (R + G + B) / 3 ctWeightedRGB Copies intensity: R * 0.21 + G * 0.71 + B * 0.08

See Also

TJclBitmap32 TConversionType

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Alex Denissov

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