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Thanh


27 total contributions since 2010

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Posted


Apply DCT compression on True color image ?
I have a question, can we apply directly DCT compression on True color image ?

6 years ago | 1820 views

Responded


Re: Matrix of colors
but with function ind2rgb, we have to define the variable X and MAP. I don't know how to define the colormap MAP. So please he...

6 years ago | 2347 views

Responded


Re: Matrix of colors
I have an true color Image, and I converted it into gray image, and now i want to convert it back to true color. But when i use ...

6 years ago | 2347 views

Posted


Matrix of colors
please show me how to get the matrix colors of RGB image!!!

6 years ago | 2347 views

Posted


Runlength coding
Please show me how to extract the image into bits sequence by Runlength Coding. Thanks!!!

6 years ago | 954 views

Posted


combine video
Hi everyone. I have a few separate videos, and now i want to combine them into one. Please show me how to do this. Thanks a lot...

6 years ago | 908 views

Responded


Re: I B P order
Thank you so much, your answer is really helpful!!!

6 years ago | 3233 views

Responded


Re: I B P order
Thank you!!! I read a document on the Internet: " I P B Picture Reordering" Pictures are coded and decoded in a different orde...

6 years ago | 3233 views

Posted


I B P order
At now, i'm doing Mpeg4 compression.I have a video and i converted it into 114 frames. So now please show me how to order frame ...

6 years ago | 3233 views

Posted


Subtract Image
i'm doing Video Processing. At now,i'm having two images and i want to find the difference between two images. I wonder can i u...

6 years ago | 2239 views

Posted


fscanf
Please help me to solve this: i have a file quantizationTable.m: quantizationTable = [15 11 10 16 24 40 51 61 and i want to run...

6 years ago | 1770 views

Posted


"fopen" function
I have a file quantizationTable.m: quantizationTable = [15 11 10 16 24 40 51 61 when i use fopen the result is: fid = Please ...

6 years ago | 2654 views

Posted


Image Compression
With JPEG- compression, before moving picture to DCT- block, we have to divide the picture into macroblock of 8*8 or 16*16. Am i...

6 years ago | 1080 views

Responded


Re: video encryption
thank you a lot , your answer is very helpful.

6 years ago | 3860 views

Responded


Re: video encryption
That's alright. Thank you a lot, i've already run this code. But please explain for me what's the purpose of the function " resh...

6 years ago | 3860 views

Responded


Re: video encryption
i have a question, when i run the code, Matlab notifies: ??? Error using ==> bitxor Operands to BIT Ops must be numeric. what's ...

6 years ago | 3860 views

Posted


Create bits sequence or variable from video
i have an avi video, please show me how can i convert it into bits sequence or variable???

6 years ago | 1095 views

Responded


Re: create sequences from video file in Matlab
Thank you so much !!!! i 've already run this demo ^^ i have a question, in this demo have a command: newWindowPosition = [1 sc...

6 years ago | 3292 views

Responded


Re: Generate DCT
thank you very much!!!!

6 years ago | 1639 views

Responded


Re: create sequences from video file in Matlab
i repaired that problem, but the demo still not running, another warning: Error extracting movie frames from: rhinos.avi Error:...

6 years ago | 3292 views

Responded


Re: create sequences from video file in Matlab
Thank you very much! But when i run this demo, Matlab notifies this: ??? Undefined function or method 'msgboxw' for input argume...

6 years ago | 3292 views

Posted


create sequences from video file in Matlab
I have a video file, and i want to convert it into sequences. Please show me how to do that. Thanks

6 years ago | 3292 views

Responded


Re: Generate DCT
thank you for answering my problem, but at now, how can i define temp and which place can i put it in this file?

6 years ago | 1639 views

Posted


Generate DCT
Copyright (c) 2009, Vittal Premachandran % All rights reserved. %% %Initialization of the DCT Matrix DCT_Matrix = [1 1 1 1 1 1 ...

6 years ago | 1639 views

Posted


Video processing
Can i converse from C and C++ code to Matlab code?

6 years ago | 775 views

Posted


Video and Image Processing
how can i get the code from the block diagram of Blocksets

6 years ago | 837 views

Posted


Blocksets

6 years ago | 1029 views