photo

Urmila


Active since 2013

Followers: 0   Following: 0

Message

Student at college of engg, pune,

Statistics

  • Thankful Level 3
  • First Answer

View badges

Feeds

View by

Question


pixel acessing in xillinx using vhdl
I have stored pixels of image in brom in xilinx using vhdl , now i dont understand how to acess each pixel.plz help me.

bijna 11 jaar ago | 0 answers | 0

0

answers

Question


1D dct equation implementation
i have written a code to implent 1D dct formula. but the results are not matching with result of inbuilt function 'dct' for the ...

bijna 11 jaar ago | 0 answers | 0

0

answers

Question


pixel scrambling of image
I have done image scrambling by exchanging pixels using following method: 1. pn sequence is generated 2.For every bit value ...

bijna 11 jaar ago | 0 answers | 0

0

answers

Question


image scrambling in matlab
I have a frame of size 144*176 and i have generated pn sequence of same size. now i want to scramble image by using following me...

bijna 11 jaar ago | 1 answer | 0

1

answer

Question


pn sequence generation using independent seed
how to generate pn sequence using independent seed, and for the same seed the same sequence should be generated.i want to use it...

bijna 11 jaar ago | 1 answer | 0

1

answer

Question


xor operation using loop
i have 1 dimentional array say p=[1 0 1 0 1 1 1 0 0], now i want to xor its bits like Q(l)= xor(p(i))...... where i=l,l+N,l+...

bijna 11 jaar ago | 1 answer | 0

1

answer

Question


dividing image into blocks and access them seperately
I am diving image into 8x8 blocks 1) using loop kk=0; for i=1:(r/bs) for j=1:(c/bs) Block(:,:,kk+j)=...

bijna 11 jaar ago | 2 answers | 0

2

answers

Question


Problem in blockwise zigzag processing of frame
I have two frames and i am dividing each frame into 8x8 blocks now i want to apply zigzag on each 8x8 block of both frames.here ...

ongeveer 11 jaar ago | 0 answers | 0

0

answers

Answered
How to convert video into Frames
you can use mmreader(filemame) function. see matlab documentation on mmreader function.

ongeveer 11 jaar ago | 0

Question


feedback with carry shift register.I have tried to write fcsr code. can anybody tell whether it is write or I should have to do changes in that.
I have tried to write fcsr code. can anybody tell whether it is write or I should have to do changes in that.also I want help fo...

ongeveer 11 jaar ago | 0 answers | 0

0

answers

Question


Bitwise addition if bit is 1.but not gettin answer.
I am taking one number and converting it into binary and checking each bit whether it is 1 and if it is 1 then is added to next ...

ongeveer 11 jaar ago | 2 answers | 0

2

answers

Question


image compression using dct,zigzag scan and runlength coding.
hello, I am trying to compress an image by applying dct, zigzag scan and run length coding. but I am stuck at zigzag coding.so ...

meer dan 11 jaar ago | 1 answer | 0

1

answer

Question


Can anybody tell me how to apply cover up attack in matlab?
Actually i want to do tamper detection and for that i want to tamper the image by cover up attack.But i am very confused how to ...

meer dan 11 jaar ago | 1 answer | 0

1

answer

Question


why i am getting error in mmreader function?
when i write the following piece of code i am getting error. clc obj=mmreader('wildlife.wmv') vedio=rea...

meer dan 11 jaar ago | 1 answer | 0

1

answer

Question


I am trying to implement LSB watermarking in matlab.But i am getting the error=> Assignment has more non-singleton rhs dimensions than non-singleton subscripts Error in ==> watermarked_image(ii,jj)=bitset(watermarked_image,1,watermark(ii,jj));
here is the code=> clc file1='C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg'; [cover_image,map]=imread(file1);...

meer dan 11 jaar ago | 1 answer | 0

1

answer

Question


I have 4*4 known matrix.i m converting it into binary and i want to embed text 'abc' into that. i am also converting it into binary.but i am getting error:Undefined function or method 'bitset' for input arguments of type 'char'.
%here is my code..what wrong i am doing? clc; a=[1:4;5:8;9:12;13:16] b=dec2bin(a,8) c=size(b,1) d=size(b,2) text...

meer dan 11 jaar ago | 1 answer | 0

1

answer