mlib_imageclearedge(3mlib) [opensolaris man page]
mlib_ImageClearEdge(3MLIB) mediaLib Library Functions mlib_ImageClearEdge(3MLIB) NAME
mlib_ImageClearEdge - sets edges of an image to a specific color SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageClearEdge(mlib_image *img, mlib_s32 dx, mlib_s32 dy, const mlib_s32 *color); DESCRIPTION
The mlib_ImageClearEdge() function sets edges of an image to a specific color. This function can be used in conjunction with the convolve and other spatial functions to fill in the pixel values along the edges. The data type of the image can be MLIB_BIT, MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT. PARAMETERS
The function takes the following arguments: img Pointer to an image. dx Number of columns on the left and right edges of the image to be cleared. dy Number of rows at the top and bottom edges of the image to be cleared. color Array of color values by channel. color[i] contains the value for channel i. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageClear(3MLIB), mlib_ImageClear_Fp(3MLIB), mlib_ImageClearEdge_Fp(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageClearEdge(3MLIB)
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mlib_ImageBlendColor(3MLIB) mediaLib Library Functions mlib_ImageBlendColor(3MLIB) NAME
mlib_ImageBlendColor - blend an image and a color SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageBlendColor(mlib_image *dst, const mlib_image *src, const mlib_s32 *color, mlib_s32 cmask); DESCRIPTION
The mlib_ImageBlendColor() function blends an image and a color with the alpha channel. It uses the following equation: Cd = Cs*As + Cc*(1 - As) Ad = 1.0 where, Cs and Cd are the RGB color components of the source and destination images, respectively. As and Ad are the alpha components of the source and destination images, respectively. Cc is the color component of the constant color. For MLIB_BYTE images, the alpha coefficients are in Q8 format. For MLIB_SHORT images, the alpha coefficients are in Q15 format and must be positive. For MLIB_USHORT images, the alpha coefficients are in Q16 format. For MLIB_INT images, the alpha coefficients are in Q31 format and must be positive. The images can have two to four channels. The length of color array must not be less than the number of channels in the images. PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source image. color Array of constant color components. cmask Channel mask to indicate the alpha channel. Each bit of cmask represents a channel in the image. The channel corresponding to the highest bit with value 1 is the alpha channel. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageBlendColor_Inp(3MLIB), mlib_ImageBlendColor_Fp(3MLIB), mlib_ImageBlendColor_Fp_Inp(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageBlendColor(3MLIB)