本文整理汇总了C++中FlexImage::Height方法的典型用法代码示例。如果您正苦于以下问题：C++ FlexImage::Height方法的具体用法？C++ FlexImage::Height怎么用？C++ FlexImage::Height使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类FlexImage的用法示例。
在下文中一共展示了FlexImage::Height方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: FlexLoadBMP8u
bool FlexLoadBMP8u(const char *file, FlexImage<Im8u,1> &img)
{
FILE *in;
BITMAPFILEHDR bmfh;
BITMAPINFOHDR bmih;
in=fopen(file,"rb");
if (in == NULL)
return(false);
//WARNING: Extra padding in bmfh causes erroneous reading into all but first field of structure
fread(&bmfh,BFHSIZE,1,in); //read BMP header
ConvertBmfh(&bmfh);
if (bmfh.bfType != 19778) //check for valid BMP file
return(false);
fread(&bmih,BIHSIZE,1,in); //read info header
ConvertBmih(&bmih);
if (bmih.biBitCount == 8)
{ fclose(in); //load as grayscale
return FlexLoadBMPGray(file, img);
}
if (bmih.biBitCount == 24)
{ fclose(in);
FlexImage<Im8u,3> tmp;
bool ok = FlexLoadBMPColor(file, tmp); //load as color image
if (ok)
{ img.ReallocateNE(tmp.Width(), tmp.Height());
FlexRGBToGray(tmp, img, false); //convert to grayscale
}
return ok;
}
fclose(in);
return(false); //only read 8 bit images
}示例2: FlexLoadBMPColor
bool FlexLoadBMPColor(const char *file, FlexImage<Im8u,3> &img)
{
FILE *in;
BITMAPFILEHDR bmfh;
BITMAPINFOHDR bmih;
in=fopen(file,"rb");
if (in == NULL)
return(false);
//WARNING: Extra padding in bmfh causes erroneous reading into all but first field of structure
fread(&bmfh,BFHSIZE,1,in); //read BMP header
ConvertBmfh(&bmfh);
if (bmfh.bfType != 19778) //check for valid BMP file
return(false);
fread(&bmih,BIHSIZE,1,in); //read info header
ConvertBmih(&bmih);
if (bmih.biBitCount != 24)
return(false); //only read 8 bit images
img.Reallocate(bmih.biWidth, abs(bmih.biHeight)); //allocate image to size
RGBA tmp;
for(int i = 0; i < (int)bmih.biClrUsed; i++) //skip color info
fread(&tmp, sizeof(RGBA), 1, in);
int padWidth = 3 * bmih.biWidth;
while(padWidth%4) padWidth++;
int dir = 1, yv = 0;
if (bmih.biHeight > 0)
{ dir = -1;
yv = img.Height() - 1;
}
for(int y = 0; y < img.Height(); y++ ) //read in pixel data
{ char tmp;
fread(&img(0,yv), 1, img.Width() * 3, in);
yv += dir;
for(int i = 0; i < padWidth - img.Width() * 3; i++) //skip over pad bytes
fread(&tmp, 1, 1, in);
}
fclose(in);
return(true);
}