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Surya Gnyawali


The Ohio State University

Attivo dal 2015

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Domanda


Can anyone answer what is the error about (attached image)?
I was trying to delete some frames from a video (>1500 frames). Want to cut down the size by deleting frames that are affected b...

quasi 8 anni fa | 1 risposta | 0

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Domanda


Can anyone please answer why the pixel value changes from about 90 to about 0.23 when I apply ind2rgb function?
% I have true color image (looks gray though because it is ultrasound image). I read the image. im = imread('c1d7.JPG'); ...

quasi 8 anni fa | 2 risposte | 0

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Domanda


how to quantify multicolor images ?
Hi, I have to quantify this attached multi-color image. This image (Picture1.png)is an outcome of (Matlab enhanced from Pictu...

circa 8 anni fa | 1 risposta | 0

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Domanda


In the mouse brain perfusion image attached, could you please tell me how to remove the blue background?
im = imread('Picture1.png'); I = rgb2gray(im); imshow(im); rgbImage = ind2rgb(I, jet(256)); imshow(rgbImage); maskedImage...

oltre 8 anni fa | 0 risposte | 0

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Domanda


can we draw lines based on the color in the image such that red color in the image is thicker to thick and blue to dark blue is thinner none?
I have microvascular perfusion rgb images. Wanted to see vessels but could not do it because of lot of noise (I guess). Now is i...

oltre 9 anni fa | 0 risposte | 0

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Domanda


I want to quantitate blood perfusion image (basically the number of counts of blood vessels in an ROI). Can you help me count the number of vessels in an ROI Please?
Perfusion image has blue, green, yellow, and red color coded map. if it can separate Blue, green, yellow, and red counts that wo...

oltre 9 anni fa | 0 risposte | 0

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Domanda


in the code below can we make freehand drawing of the line instead of straight line?
if true figure, imshow(I); h = imdistline(gca); api = iptgetapi(h); width = api.getDistance(); end

oltre 9 anni fa | 1 risposta | 0

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Domanda


Can anyone help me converting rgb to 8-bit gray scale or indexed color image to open in NeuronJ?
I used: rgb2gray(im), rgb2ind(im,3) it converts but when I open this image in NeuronJ software it says Only 8-bit images can be ...

oltre 9 anni fa | 1 risposta | 1

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Domanda


I could not understand why this part of a code gives error "Undefined function or variable 'normalise'". Can you please figure out for me?
function [normim, mask, maskind] = ridgesegment(im, blksze, thresh) im = normalise(im,0,1); % normalise to have zero mea...

oltre 9 anni fa | 2 risposte | 0

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Domanda


Hi all, I have a image to reduce noise? I used medfilt2(), weiner2(), filter2(fspecal('average',3),image)... none helped. Can anybody help me?
In enhancing blood vessels I used medfilt2(), weiner2(), filter2(fspecal('average',3),image). I also used regionprops() and edge...

oltre 9 anni fa | 0 risposte | 0

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Domanda


Can anybody help me the function adjcontrast() ?
I need to see capillary blood vessels from a perfusion imaging. I need to reduce the noise, enhance contrast. Hoping this functi...

oltre 9 anni fa | 1 risposta | 0

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Domanda


Hi can anybody help me why adjcontrast() function doesn't work? Is there an alternative to adjust contrast? Could you please help me denoise the image?
I need to enhance a perfusion image to see the blood vessels in Laser Speckle Imaging. Tried regionprops(), medfilt2(), imdi...

oltre 9 anni fa | 1 risposta | 0

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