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@@ -384,8 +384,12 @@ void xyzcal_adjust_pixels(uint8_t* pixels, uint16_t* histo)
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for (l = 14; l > 8; l--)
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if (histo[l] >= 10)
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break;
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- uint8_t pix_min = (max_l << 4) / 2;
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+ uint8_t pix_min = 0;
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uint8_t pix_max = l << 4;
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+ if (histo[0] < (32*32 - 144))
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+ {
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+ pix_min = (max_l << 4) / 2;
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+ }
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uint8_t pix_dif = pix_max - pix_min;
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DBG(_n(" min=%d max=%d dif=%d\n"), pix_min, pix_max, pix_dif);
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for (int16_t i = 0; i < 32*32; i++)
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