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@ -66,6 +66,9 @@ for (idx=0; idx<4; idx++) means[idx] /= (float)surface;
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return 0;
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}
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/* ---------------------------------------------------------------- */
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/*
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* more elaborate functions are in fimg-2gray.c
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*/
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int fimg_to_gray(FloatImg *head)
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{
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float add;
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