/**
**************************************************************************
* This function performs loading of bitmap luma
*
* \param FileName [IN] - Image name to load
* \param Stride [IN] - Image stride
* \param ImSize [IN] - Image size
* \param Img [OUT] - Prepared buffer
*
* \return None
*/
void LoadBmpAsGray(char *FileName, int Stride, ROI ImSize, byte *Img)
{
BMPFileHeader FileHeader;
BMPInfoHeader InfoHeader;
FILE *fh;
fh = fopen(FileName, "rb");
fread(&FileHeader, sizeof(BMPFileHeader), 1, fh);
fread(&InfoHeader, sizeof(BMPInfoHeader), 1, fh);
for (int i=ImSize.height-1; i>=0; i--)
{
for (int j=0; j<ImSize.width; j++)
{
int r=0, g=0, b=0;
fread(&b, 1, 1, fh);
fread(&g, 1, 1, fh);
fread(&r, 1, 1, fh);
int val = ( 313524*r + 615514*g + 119537*b + 524288) >> 20 ;
Img[i*Stride+j] = (byte)clamp_0_255(val);
}
}
fclose(fh);
return;
}
/**
**************************************************************************
* Copies float plane to byte plane (with clamp)
*
* \param ImgSrc [IN] - Source float plane
* \param StrideF [IN] - Source plane stride
* \param ImgDst [OUT] - Destination byte plane
* \param StrideB [IN] - Destination plane stride
* \param Size [IN] - Size of area to copy
*
* \return None
*/
void CopyFloat2Byte(float *ImgSrc, int StrideF, byte *ImgDst, int StrideB, ROI Size)
{
for (int i=0; i<Size.height; i++)
{
for (int j=0; j<Size.width; j++)
{
ImgDst[i*StrideB+j] = (byte)clamp_0_255((int)(round_f(ImgSrc[i*StrideF+j])));
}
}
}
int cColor::c()
{
return makecol(clamp_0_255((int)r), clamp_0_255((int)g), clamp_0_255((int)b));
}
