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Andrew


2012년부터 활동

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Masking in DCT Compression
I am trying to do image compression in DCT. Can someone please help me understand how masking affects bit per pixel in DCT? How ...

대략 11년 전 | 답변 수: 0 | 0

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How does MSB affect the compression ratio of an image?
I would like to ask if there is a way the Most Significant Bit(MSB) in DCT compression affects the quality of the image or the i...

대략 11년 전 | 답변 수: 0 | 0

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I would like to apply DCT to each element in a matrix
I have a code where i take every 8*8 block of a 512*512 image and find its average, and subtract it away, storing the result int...

대략 11년 전 | 답변 수: 1 | 0

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Explanation to do with image bitrate(bpp) allocation
I would like someone to help me with an explanation of how bit allocation is done in the DCT image compression technique. I have...

대략 11년 전 | 답변 수: 0 | 0

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Reading a double image
I have encoded and decoded a 256*256 image. At first i did it using the image in "*uint8" precision and everything works well. b...

대략 11년 전 | 답변 수: 1 | 0

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Form a matrix from a structure
Thanks to Azzi and Cedric o was able to get a step forward. however my question now is, i have managed to extract all the binary...

대략 11년 전 | 0

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Form a matrix from a structure
I have a 32*32 data structure. There are 1*1 structures in each of those 32*32 cells. However, i would like to extract all the b...

대략 11년 전 | 답변 수: 3 | 0

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Extracting data from a structure
I have performed DCT on an image(256×256) and the the compressed data is saved in a file. When i open this file in workspace, th...

대략 11년 전 | 답변 수: 1 | 0

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How to save a c++ readable Mat file
I am running a DCT code in matlab and i would like to read the compressed file(.mat) into a c code. However, am not sure this is...

대략 11년 전 | 답변 수: 1 | 0

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How to calculate the Compression ratio
Hi, could someone explain to me how to calculate the compression ratio of an image from the quantization bit allocation? I tho...

대략 11년 전 | 답변 수: 1 | 0

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Not enough input arguments.
I am trying to implement DCT compression and save the quantized coefficients into a file that will be read into another program....

11년 초과 전 | 답변 수: 0 | 0

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I have these two codes. Can someone help me determine whats wrong with them.
For the "jpegcomp" code, i get an error message telling me to "% load file of variables containing a gray image matrix" even whe...

11년 초과 전 | 답변 수: 1 | 0

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How do i calculate the affine transformations of an image?
I am doing some research on fractal image compression but i am not well conversant with many things yet. I would like to ask how...

11년 초과 전 | 답변 수: 1 | 0

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I need help with the Matlab R2007b commands
I am researching on image compression ans i happen to be using matlab version r2007b but i realize that some of the matlab comma...

11년 초과 전 | 답변 수: 2 | 0

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