Updated Tutorial PSNR for identical images

2026-01-15 12:15:17 +00:00 · 2025-10-02 00:03:28 +01:00
parent e9bded6ff3
commit acc76304d5
3 changed files with 24 additions and 27 deletions
--- a/samples/python/tutorial_code/videoio/video-input-psnr-ssim.py
+++ b/samples/python/tutorial_code/videoio/video-input-psnr-ssim.py
@@ -16,7 +16,7 @@ def getPSNR(I1, I2):
    s1 = s1 * s1            # |I1 - I2|^2
    sse = s1.sum()          # sum elements per channel
    if sse <= 1e-10:        # sum channels
-        return 0            # for small values return zero
+        return 360          # For very small SSE, return 360 to cap PSNR (theoretical value is infinity)
    else:
        shape = I1.shape
        mse = 1.0 * sse / (shape[0] * shape[1] * shape[2])