pBITMAPHANDLE pBitmap;

/* pointer to the bitmap handle */

LPCOLORREPLACE pColorReplace;

/* array of COLORREPLACE structures */

L_UINT uColorCount;

/* number of colors */

L_INT nHue;

/* angular amount to change the hue, in degrees */

L_INT nSaturation;

/* amount to change saturation */

L_INT nBrightness;

/* amount to change the brightness */

Parameter

Description

pBitmap

Pointer to the bitmap handle that references the bitmap on which to apply the effect.

pColorReplace

An array of COLORREPLACE structures, one for each color to be replaced.

uColorCount

The number of colors to be replaced.

nHue

Angular amount to change the hue, in hundredths of degrees. Valid values range from –18000 to 18000. This value is divided internally by 100.

nSaturation

Amount to change saturation, in tenths of percent. Valid values range from –1000 to 1000. This value is divided internally by 10. Negative values decrease the saturation of colors. Positive values increase the saturation. The saturation level is increased or decreased by a percentage of its present saturation level. For example, an increase of 20% of the current saturation level "L" will raise the new saturation level "L1" to a value L = 0.20 * L. Likewise, increasing the saturation level 100% doubles the saturation level (L1 = L + 1.0 * L). Decreasing the saturation level 100% will set the new saturation level to 0. The saturation is set to 1000 (maximum value) if the new value exceeds 1000).

nBrightness

Amount to change the brightness, in tenths of percent. Valid values range from –1000 to 1000. This value is divided internally by 10. Positive values increase (or lighten) the brightness of the bitmap image. Negative values decrease (or darken) the brightness of the bitmap image.

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

LTIMG

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Functions:

L_ChangeBitmapIntensity, L_GammaCorrectBitmap, L_ChangeBitmapContrast, L_HistoContrastBitmap, L_StretchBitmapIntensity, L_RemapBitmapIntensity, L_InvertBitmap, L_ChangeBitmapSaturation, L_HistoEqualizeBitmap, L_FillBitmap, L_GetPixelColor, L_PutPixelColor, L_GetBitmapHistogram, L_WindowLevel, L_ChangeBitmapHue, L_AverageFilterBitmap, L_MedianFilterBitmap, L_AddBitmapNoise, L_IntensityDetectBitmap, L_SpatialFilterBitmap, L_BinaryFilterBitmap, L_MaxFilterBitmap, L_MinFilterBitmap, L_AddShadowBitmap, L_ChangeHueSatIntBitmap, L_ColorThresholdBitmap, L_DFTBitmap, L_AllocFTArray, L_DirectionEdgeStatisticalBitmap, L_FFTBitmap, L_FreeFTArray, L_FrqFilterBitmap, L_FrqFilterMaskBitmap, L_FTDisplayBitmap, L_GetBitmapStatisticsInfo, L_GetFeretsDiameter, L_GetObjectInfo, L_GetRgnContourPoints, L_GetRgnPerimeterLength, L_MathFunctionBitmap, L_RevEffectBitmap, L_SegmentBitmap, L_SubtractBackgroundBitmap, L_UserFilterBitmap, L_AdjustBitmapTint, L_ColorHalfToneBitmap

Topics:

Raster Image Functions: Modifying Intensity Values

Correcting Colors

Raster Image Functions: Correcting Colors