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dgtlmoon
2025-12-16 14:13:31 +01:00
parent b3ceef9aca
commit e47c687f68
4 changed files with 87 additions and 12 deletions
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15
changedetectionio/processors/image_ssim_diff/difference.py
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@@ -241,9 +241,9 @@ def generate_diff_image_opencv(img_bytes_to, diff_mask):
# Convert back to PIL Image
diff_img = Image.fromarray(result_array.astype(np.uint8))
# Save to bytes as PNG (faster rendering than JPEG for diff images)
# Save to bytes as JPEG (smaller and faster than PNG for diff visualization)
buf = io.BytesIO()
diff_img.save(buf, format='PNG', optimize=True)
diff_img.save(buf, format='JPEG', quality=85, optimize=True)
diff_bytes = buf.getvalue()
# Explicit memory cleanup - close files and buffers, delete large objects
@@ -264,14 +264,17 @@ def generate_diff_image_pixelmatch(diff_array):
diff_array: RGBA diff array from pixelmatch (4D numpy array)
Returns:
bytes: PNG image with highlighted differences
bytes: JPEG image with highlighted differences
"""
# Convert diff array to PIL Image
# Convert diff array to PIL Image (RGBA)
diff_img = Image.fromarray(diff_array.astype(np.uint8), mode='RGBA')
# Save to bytes as PNG
# Convert RGBA to RGB for JPEG (JPEG doesn't support transparency)
diff_img = diff_img.convert('RGB')
# Save to bytes as JPEG (smaller and faster than PNG)
buf = io.BytesIO()
diff_img.save(buf, format='PNG', optimize=True)
diff_img.save(buf, format='JPEG', quality=85, optimize=True)
diff_bytes = buf.getvalue()
# Explicit memory cleanup - close files first, then delete