使用Intel IPP镜像BGR（24位）图像

Question

I'm trying to mirror a raw (without image header) BGR image, 8 bit per pixel, using the following code:

void mirrorBGR(byte* src, byte* dst, UINT width, UINT height, UINT pitch_s, UINT pitch_d)
    {
        IppiSize size;
        size.width = width;
        size.height = height;
        IppStatus status = ippiMirror_8u_C3R(src, pitch_s, dst ,pitch_d, size, ippAxsVertical);
        if (status != ippStsNoErr)
        {
            printf("Mirror RGB24 failed: %d",status);
        }
    }

The image size is 640x360. pitch_s = pitch_d = width = 640. What could be the problem?

Answer 1

Pitch is the scanline length for source & dest bitmaps.

If you use no padding, at least it should 640 (width) * 3 (bytes per pixel) = 1920