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JPEG decompression

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Hi! I want to decompress a picture with the Independent JPEG Group (IJG) Library, but the result of the decompressed image is mirrored. I know that the following lines are responsible for the problem: int rowsRead = 0; while (cInfo->output_scanline < cInfo->output_height) { rowsRead += jpeg_read_scanlines(cInfo, &rowPtr[rowsRead], cInfo->output_height - rowsRead); } I found a tutorial a few months ago with following lines: int rowsRead = cInfo->output_hight-1; while (cInfo->output_scanline < cInfo->output_height) { rowsRead -= jpeg_read_scanlines(cInfo, &rowPtr[rowsRead], cInfo->output_height - rowsRead); } There will be no mirroring, but the result has gray lines in the picture... Is there anyone who knows the problem or gained experience with the IJG-Library?? Thx, Dave

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