Dividing an Image into 3x3 Matrix

Started by jawaad aslam in Matlab DSP12 years ago 3 replies

Hello All, ? Hope everyone is fine and going smoothly. I raised the same querry before but didnt get the desired reply from you. Actually I am...

Hello All, ? Hope everyone is fine and going smoothly. I raised the same querry before but didnt get the desired reply from you. Actually I am working on Fingerprints Recognition. I tell you in detail please go through it carefully. ? Lets suppose I have a fingerprint Image and after converting it into binary form I get the result as follows: ? 1 0 0 1 1 1 0 0 1 0 0 1 0 1 1........ ? 0 0 1...


Image Encryption by logistic map and Error Concealment

Started by saad abuguba in Matlab DSP12 years ago

Hi All, Anyone got idea about image encryption by using logistic map and code of error concealment based on DWT image. Please help!

Hi All, Anyone got idea about image encryption by using logistic map and code of error concealment based on DWT image. Please help!


Color Images

Started by aditya in Matlab DSP17 years ago 3 replies

Hi All, I was trying to isolate the RGB components from a given image.I wrote the following code and i am getting the red and...

Hi All, I was trying to isolate the RGB components from a given image.I wrote the following code and i am getting the red and blue components but for the green component i am getting a Black image.Can some one guide what is going wrong.Also when i try to take the histogra


windowing a 2-d signal

Started by manxyzt in Matlab DSP11 years ago

can you help me about windowing a 2-d signal.. i want to window this data with Hanning window.. the data is 64x64 ISAR radar's...

can you help me about windowing a 2-d signal.. i want to window this data with Hanning window.. the data is 64x64 ISAR radar's backscattered data.. when i have an image by IFFT2 .. the image has unwanted sidelobes.. so i think if i can window this data i will have a better image.. do you have any idea about that?? how can i window 2-d signal?? thanks for help..


Image restoration

Started by \Valeria Leite\ in Matlab DSP15 years ago

Dear all, Someone has a Matalab code for image restoration? Best regards, Valeria

Dear all, Someone has a Matalab code for image restoration? Best regards, Valeria


Image stitching

Started by mano arun in Matlab DSP13 years ago

Hi all, I am doing Face verifiacation project , assuming the face as bilateral symmetry, i cut the face image into 2 halves Is there any...

Hi all, I am doing Face verifiacation project , assuming the face as bilateral symmetry, i cut the face image into 2 halves Is there any simple method to join the images?? with thanks! -- If you cannot be a poet, be the poem ? manoarun


Re: For Loop Execution

Started by Joe Sababa in Matlab DSP18 years ago

--- bakoguz <> wrote: > I have a problem of for loops. > I saw the messages about them but it did not help > me. > I want to...

--- bakoguz <> wrote: > I have a problem of for loops. > I saw the messages about them but it did not help > me. > I want to filter my matrix(actually an image) by a > filter > and I want to convolve(2D) my filter with my image. > If I use


Minumum cut

Started by nouman_aftab in Matlab DSP14 years ago

Hi all, I am doing work of image processing and in it "segmentation" through Minimum Cut. I am getting the eigen vectors of image. But I...

Hi all, I am doing work of image processing and in it "segmentation" through Minimum Cut. I am getting the eigen vectors of image. But I want stuck on how to make a segmented picture from the eigen vector of highest eigen value. Please help me & reply urgently plz. Nouman


importing images into matlab

Started by m5eedat in Matlab DSP13 years ago

How can i wirte a matlab function to load image data into matlab. The image is in XRI format?

How can i wirte a matlab function to load image data into matlab. The image is in XRI format?


Re: Hello friend Amit

Started by Amit Pathania in Matlab DSP13 years ago

ok let me try this one. suppose u want to choose the key based on the day and last 2 digits of some of your favorite people. assuming that the...

ok let me try this one. suppose u want to choose the key based on the day and last 2 digits of some of your favorite people. assuming that the matrix supports this key system in terms of dimensions. try this for a 256 X 256 image image_X = rand(256); % generating any random image of size 256 X 256 key = [randint(256,1,[1,31]), randint(256,1,[1,99])]; watermark_indices...


line disconnection in the image

Started by kanval_5 in Matlab DSP14 years ago

Hi there , I want to find the connectivity of line in the image i want to calculate whether the line is disconnected or not and i need to...

Hi there , I want to find the connectivity of line in the image i want to calculate whether the line is disconnected or not and i need to know the location of that area I am working in the environment of MATLAB I hope you will spend some of your precious time to figure out my problem regards kanwal


How to put mark on an image

Started by abdul mannan in Matlab DSP9 years ago 1 reply

Dear Friends, Please take my greeting. I need to put rectangular mark around a specific pixel on an gray scale image and...

Dear Friends, Please take my greeting. I need to put rectangular mark around a specific pixel on an gray scale image and write down a numeric value for that mark (inside or outside of the rectangle). Any one can help me by giving Matlab function or code? Sumon


Unsupported Image

Started by Dr John in Matlab DSP19 years ago 2 replies

Hey Group, Has anyone got any experience of importing a image file into Matlab that was unsupported? If so could you please...

Hey Group, Has anyone got any experience of importing a image file into Matlab that was unsupported? If so could you please help.. Cheers


mri again

Started by ku daychyi in Matlab DSP18 years ago 1 reply

Hi, can you help me for this: [mri(:,:,:,1),map] = imread('mri.tif',1); when i read the mri image just the first frame, the ...

Hi, can you help me for this: [mri(:,:,:,1),map] = imread('mri.tif',1); when i read the mri image just the first frame, the matlab didn't show me any error msg. but when i ask for reading 2 frame in the mri image: [x(:,:,:,2),map] = imread('mri.tif',2); give me the


pixel values

Started by heidar mhr in Matlab DSP13 years ago 3 replies

Hello guys, I have a question. I have an image and I am wondering how to use MATLAB to generate a text file that contains the pixel values of...

Hello guys, I have a question. I have an image and I am wondering how to use MATLAB to generate a text file that contains the pixel values of the image? Thanks Haidar


Colored image

Started by lowtechorhightech in Matlab DSP15 years ago 3 replies

Please explain how to obtain the hue of a colored image in MATLAB

Please explain how to obtain the hue of a colored image in MATLAB


insert image in matlab gui

Started by issaoui leila in Matlab DSP14 years ago

Hi all, Is there any one who knows how inserting image in a matlab gui ? Thanks for help. Regards, leila.

Hi all, Is there any one who knows how inserting image in a matlab gui ? Thanks for help. Regards, leila.


curvature calculation

Started by Anonymous in Matlab DSP19 years ago 1 reply

I have an image which i had smoothed using Gaussian smoothing technique. I had also detected the edge of the object in the image. ...

I have an image which i had smoothed using Gaussian smoothing technique. I had also detected the edge of the object in the image. Next, I would like to calculate the curvature of the edge. How can do this using Matlab ? anyone got any idea ?? thanks..


imwrite

Started by aidan mooney in Matlab DSP18 years ago 1 reply

dear all, I have a problem whichI hope somebody can help me with. I have an image ranging in values from 0 to 255. I have to...

dear all, I have a problem whichI hope somebody can help me with. I have an image ranging in values from 0 to 255. I have to modify some of the pixels to say 103.234 I therefore have values with decimal places. however the problem is when I go and save image again using i


Converting image from grayscale to RGB

Started by sajjad_strong in Matlab DSP9 years ago 4 replies

Hi I am trying to write a Matlab program and having hard time figuring out how to convert back an image which have been converted to gray...

Hi I am trying to write a Matlab program and having hard time figuring out how to convert back an image which have been converted to gray scale to RGB for instance : IRG = imread('someimage.bmp'); X = rgb2gray(IRG); after doing my operations on X how can I convert it back to RGB I'll really appreciate it if anyone can help me