Image Normalization and Type Conversion

Detect and prevent unexpected normalization results when converting images to [0,1] using base MATLAB image I/O functions.

When to Use

• Reading images with imread and converting to double for processing
• Normalizing images to [0,1] for ML training or batch processing
• Displaying images with imshow (especially if result is all-white)
• Any imread → process → imwrite workflow involving type conversion
• Brightening, scaling, or adjusting pixel values arithmetically

When NOT to Use