MimLutMap()函数
MimLutMap()函数
Synopsis
Perform a point-to-point LUT mapping operation.
Format
void MimLutMap(SrcImageBufId, DestImageBufId, LutBufId)
MIL_ID SrcImageBufId; Source image buffer identifier
MIL_ID DestImageBufId; Destination image buffer identifier
MIL_ID LutBufId; LUT identifier
Description
This function maps each pixel in the specified source image to values determined by the specified look-up table (LUT).
If the source image is signed, negative numbers are treated as unsigned values and address the LUT accordingly. For example, -1 is represented as 0xff for 8-bit image data and 0xffff for 16-bit image data and will therefore address LUT entry 0xff or 0xffff, respectively.
The SrcImageBufId parameter specifies the identifier of the data source of the operation. This parameter must be given an image buffer identifier.
The DestImageBufId parameter specifies the identifier of the destination of the results. This parameter must be given an image buffer identifier.
The LutBufId parameter specifies the LUT through which to map source input values. This parameter must be given a valid LUT buffer identifier.
If the LUT has fewer entries than the full range of source values, unexpected results will occur. If the LUT buffer depth is greater than that of the destination buffer, results will be truncated to fit the destination buffer. LUT entries must have been previously initialized (for example, using MgenLutRamp or MbufPut1d).