Wiener Filter

Wiener filter is a filter used to remove degradation from a image without being affected by noise that’s present in the image. If wiener filter is not used, and the image is restored just by dividing the frequency domain of an image by the frequency domain of the future, the image will be badly corrupted […]

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Image White Balance

Introduction White balance is used to remove unrealistic colour casts caused by different light source. It’s easy for human eyes to adjust what we see according to the light source of the current environment but it’s hard for the camera to adjust according to the lighting condition of the room. Sometimes, we refer that as […]

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Resolution Quantization

Each pixel of an image is usually representing using 4 bytes: 3 colors (R,G,B) and Alpha (A) or just 3 bytes (R,G,B). As we know 1 byte is 8 bits and it can represent values from 0 to 255 (unsigned). Thus in terms of RGB a pixel will have a combination of 224 which is 16777216 […]

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Reading BMP Files

BMP is an abbreviation for Bitmap. It’s a file format used for storing image. The quote below is extracted from Wikipedia: The BMP file format, also known as bitmap image file or device independent bitmap (DIB) file format or simply a bitmap, is a raster graphicsimage file format used to store bitmapdigital images, independently of the […]

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