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Question
how to convert negative integers(that are not between -127 and 0) to binary in matlab?
hi. i want to convert these numbers to binary:b=[171 -7 4 -140].and i use this code: bitstream=dec2bin(typecast(int8(b),'uint8')...
environ 9 ans il y a | 1 réponse | 0
1
réponseQuestion
how displaying subband coefficient matrix of dwt in matlab?
hi i apply dwt2 on image [ll,lh,hl,hh]=dwt2(i,'haar') is hh a coeffiecients matrix? is it correct i show it by imtool(hh)? i w...
environ 9 ans il y a | 1 réponse | 0
0
réponseQuestion
how to change pixel value after applying dwt on image?
hi. i want to change pixel value of an image after apply dwt on one of rgb channel like red channel but after applying dwt pixel...
environ 9 ans il y a | 1 réponse | 0
1
réponseQuestion
why the image loses its quality after saving by matlab?
hi i have a double rgb image that i save it through this code( imwrite(mat2gray(rgbImage),'s.png','compression','none','bitdept...
environ 9 ans il y a | 1 réponse | 0
0
réponseQuestion
how to save a double m*n*3 matrix as one of image formats with no losing informataion?
Hi. I have a double m*n*3 matrix and I want to save it as one of the standard image formats. I converted it to uint16, and saved...
plus de 9 ans il y a | 1 réponse | 0
1
réponseQuestion
how to avoid changes of image edges?
hi . i have changed the pixels of an image in edges and then i have saved it.and when i read the image and want to extract that ...
plus de 9 ans il y a | 1 réponse | 0
0
réponseQuestion
difference between two double vector?
Hi. I am new in matlab so if you help me I will be grateful. I do not know the difference between these two data: p=[0....
plus de 9 ans il y a | 2 réponses | 0
2
réponsesQuestion
how to save image in png format by keeping data values?
hi...i apply dwt on redchannel of an image and after that i change pixel value of hh and hl bands and apply idwt and after obtai...
plus de 9 ans il y a | 1 réponse | 0
1
réponseQuestion
how to create a huffman dictionary?
hi i Compress a binary vector by huffman encoding and for huffman dictionary i use huffmandict(alpha,prob).in decoding part i h...
plus de 9 ans il y a | 1 réponse | 0
0
réponseQuestion
how to hide huffman encoding information in image ?
hi i am working on steganography project and I used huffman coding to compress data . in extraction part for huffman decoding ...
plus de 9 ans il y a | 1 réponse | 0
0
réponseQuestion
how to save an double image with no changing in matlab?
hi i am working on image steganography project and my problem is that after hiding the message in image my image became double ...
plus de 9 ans il y a | 1 réponse | 0
1
réponseQuestion
how to save an double image in tiff format in matlab and open it by any program?
hi i have an rgb double image that i write it by matlab tiff class in tiff image format but i can not open it with any program a...
plus de 9 ans il y a | 1 réponse | 0
0
réponseQuestion
how save image in jpeg format by keeping pixel value?
i have an rgb image in double format and i want to save it as jpeg so i convert it to uint8 and use imwrite to save it but it ch...
plus de 9 ans il y a | 2 réponses | 0
