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I created a method in Matlab for quantizing an Image.But I don't seem to get a good quantization of the image.(For example, when I quantize the image after using DWT and then use IDWT, the image is filled with squares).
what is wrong with the quantization method?
edit: This is for example a the result of DWT->quantizing the LH,HL,HH values ->IDWT. the image is filled with squares.
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One Hot Encoding Matlab
Non Uniform Quantization
Hey I'm a newbie in matlab. I've read a text image, converted it to a grayscale image and applied sobel operator. Now i want to 'quantize the image'
2 Answers
Convert the uint8 image to double and divide by 255. Multiply by amount of quanta you want, say 50, and convert it back to uint8. Now you have quantized it. To view it properly, convert it to double again and divide by 50, use imshow. Sample code: