How to change value of pixels become a regular form, such as rectangular, triangular, cone, and others in an image? I have the finger knuckle images, I applied the mask function and remove …

Sep 19, 2016 · I am trying to change a pixel value of a RGB image with the property '512*512*3 double'. I tried like gray scale images below imagename(100,100) = [0.1,0.1,0.1]; or …

Nov 18, 2014 · It appears you only want to change the image values based on the y coordinate, so create a new matrix y like this: y = (1:height)' * ones(1,width); where height and width are …

Aug 31, 2018 · So what I need to do is to apply an operation like (x(i,j)-min(x)) / max(x(i,j)-min(x)) which basically converts each pixel value such that the values range between 0 and 1. First of …

Aug 5, 2019 · Load the image, load the csv file, index into the image and replace values. Write the image to file again if desired.

Jul 10, 2019 · Regardless of the image type, the contrast limits are always expected to be in the range [0 1]. This will require you to rescale them yourself by dividing by 65535 : scaledImage = …

Feb 19, 2012 · Try this first: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer. Then come back and tell us which two …

Change the size of an image by specifying a multiplicative scale factor or by specifying the desired output size of the image.

i have an image and i need to change the pixel value of that image in any co-ordinate.

Hi guys, I needed some help with my current code. What i wanted to do is to read in a colour image, change it to grayscale and enhance the color using thresholding (like pixel values of 4 i …