<div>HI guys,</div>
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<div>I've created a tile index file with the GDALTINDEX utility for my small raster jpeg images, all things work well, but the end output jpeg image with MapServer is a little weird, there are some white grid lines on the output image. I don't know if there are some blank areas between the tile images when creating the tile index file, or the tile index grid are drawn by MapServer on the output jpeg image.
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<div>attached is a small example output jpeg image.</div>
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<div>any clues are welcome.</div>
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<div>Best Regards</div>
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<div>Zhongahi</div>