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Kavitha Srinivasan


Active since 2011

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Professional Interests: Image processing

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Question


how to concatanate structures of different sizes?
Hi all, could you please help me to solve this problem. I have structures of different sizes and I want to concatenate them....

10 years ago | 1 answer | 0

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answer

Question


How to suppress ring artefacts from a CT image?
Dear all I reconstructed a set of CT images analytically. But my images have got concentric rings depicted on it. I want to ...

11 years ago | 1 answer | 0

1

answer

Question


Normalise an Uint16 image between specified limits
Hi all I have a gray-scale image in double precision that has to be converted to uint16 and normalise the image between the l...

11 years ago | 1 answer | 0

1

answer

Question


How to change pixel values of background to zero
I have an gray image as uint16. the background of the image (air region)has got some pixel values. I want to make them all zero....

11 years ago | 1 answer | 0

1

answer

Question


how to open a binary *.bin file in Matlab
Hi all I have a binary Image file (1024*768) that I could open it through matlab using, fopen, fseek, fread. However, the imag...

11 years ago | 1 answer | 0

1

answer

Question


How to improve pixel resolution in an image?
Hi all I have a 951*951 matrix of image after reconstruction. I want to resize them into 512*512 in Matlab. At the same t...

12 years ago | 2 answers | 0

2

answers

Question


TO convert *.mat file into *.dcm files
Hi all I am working with multidimensional array of CT images in mat format. Now I need to save them as *.dicom files. By usi...

12 years ago | 1 answer | 0

1

answer

Question


How to solve Matlab memory issue
Hi all I am working with huge data file of matrix size 1024*736 and has 367 such files. The approximate RAM required for pro...

12 years ago | 2 answers | 0

2

answers

Question


How to improve resolution of CT image?
Hi all I want to improve the resolution of the CT images. Is there any filter that could improve the low-contrast resolution ...

12 years ago | 1 answer | 0

1

answer

Question


To open Cone beam projections in Matlab
Hi all, I am working on Cone beam images. Is there any way in Matlab to open the cone beam projections (raw data) that are...

12 years ago | 2 answers | 0

2

answers

Question


Decompress binary image files
I have set of binary files each of which is compressed. Each file is a matrix of size 1024*768, uint32.The file is in specific...

12 years ago | 2 answers | 0

2

answers

Question


How to save non-dicom images (like tiff, bmp, raw files) as dicom images
I have .bmp files which I want to save as dicom files. I tried using 'dicomwrite' command, but it didn't work. It seems the code...

12 years ago | 1 answer | 0

1

answer

Question


How to save N number of files in to single binary data file in column major order
Hi all I am working on projection files which I saved as .tif files. In order to open them through a GUI, I should concatenate...

12 years ago | 1 answer | 0

1

answer

Question


How to stack image files if they are of different size
I am working with .tif images. they are of different sizes and there about 600 files.when i try to stack those images using 'for...

12 years ago | 1 answer | 0

1

answer

Question


Dicom write help
I am using dicomwrite command to write the manipulated CT images on a file outside matlab. I was successful in running the code....

13 years ago | 0 answers | 0

0

answers

Question


Image quality checks
Hi all Is there a way to perform some CBCT image quality checks in Matlab like Image uniformity, HU linearity, Contrast- nois...

13 years ago | 0 answers | 0

0

answers

Question


To calculate mean of ROI drawn using freehand tool
Is there any way to find the mean of the region of interest drawn using 'imfreehand' tool. I could get the mean if I use imcrop...

13 years ago | 2 answers | 1

2

answers

Question


CT image processing- want to extract line profiles and compare sinograms
Hi all I am a student and want to improve the image quality of CT using matlab. For which I need to measure HU values by extrac...

13 years ago | 1 answer | 0

1

answer