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Update main.cc to make the result more intuitive #133

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Update main.cc to make the result more intuitive #133

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11 changes: 7 additions & 4 deletions examples/yolov8_seg/cpp/main.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -108,11 +108,14 @@ int main(int argc, char **argv)
for (int k = 0; k < width; k++)
{
int pixel_offset = 3 * (j * width + k);
if (seg_mask[j * width + k] != 0)

if (seg_mask[j * width + k] != 0) // 'Pixels==0' are excluded in this line
{
ori_img[pixel_offset + 0] = (unsigned char)clamp(class_colors[seg_mask[j * width + k] % N_CLASS_COLORS][0] * (1 - alpha) + ori_img[pixel_offset + 0] * alpha, 0, 255); // r
ori_img[pixel_offset + 1] = (unsigned char)clamp(class_colors[seg_mask[j * width + k] % N_CLASS_COLORS][1] * (1 - alpha) + ori_img[pixel_offset + 1] * alpha, 0, 255); // g
ori_img[pixel_offset + 2] = (unsigned char)clamp(class_colors[seg_mask[j * width + k] % N_CLASS_COLORS][2] * (1 - alpha) + ori_img[pixel_offset + 2] * alpha, 0, 255); // b
// To make this code more intuitive, the index of class_colors[] need '-1'
// Let the color of the class1 correspond to class_colors[0]
ori_img[pixel_offset + 0] = (unsigned char)clamp(class_colors[(seg_mask[j * width + k] - 1) % N_CLASS_COLORS][0] * (1 - alpha) + ori_img[pixel_offset + 0] * alpha, 0, 255); // r
ori_img[pixel_offset + 1] = (unsigned char)clamp(class_colors[(seg_mask[j * width + k] - 1) % N_CLASS_COLORS][1] * (1 - alpha) + ori_img[pixel_offset + 1] * alpha, 0, 255); // g
ori_img[pixel_offset + 2] = (unsigned char)clamp(class_colors[(seg_mask[j * width + k] - 1) % N_CLASS_COLORS][2] * (1 - alpha) + ori_img[pixel_offset + 2] * alpha, 0, 255); // b
}
}
}
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