Raster Image Functions: Image Processing Getting and Setting Pixel Values

High-level functions:

L_ClearNegativePixels

L_ColorReplaceBitmap

L_ColorThresholdBitmap

L_ConvertBitmapSignedToUnsigned

L_GetBitmapColorCount

L_RemoveRedeyeBitmap

L_ShiftMinimumToZero

L_ShiftZeroToNegative

Lock and release for low-level functions:

L_ReleaseBitmap

Low-level functions:

L_GetBitmapRowCol

L_PutBitmapRowCol

L_GetPixelColor

L_PutPixelColor

L_GetResizedRowCol