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How can I display a colored .png image with a specific color background ?
Giovanni - 2020-09-29

I have been trying to display a png image with a certain background color (image background not the figure window background color), lets say [0.9 0.5...

how to compute the number of image from subfolder ?
Emmettsmith - 2020-09-29

hello every one i want to compute the number of images from image dataset witch have many subfolder d = dir(fullfile(('.\databasee\'))) num =length(d)...

How to group the rows of a matrix based on a grouping variable ?
Ximena - 2020-09-29

I combined three categorical arrays and obtained a 1000x3 matrix (associated with 1000 images I am working on). Basically, one of the three variables ...

how do I randomly assign an effect to image
Nehemiah - 2020-09-28

my code goes something like this: rgbImage = imread ('bunny.png'); %black text image saying "bunny" rgbImage2 = imread ('dragon.png'); %black text ima...

How do I apply SVD (Singular Value Decomposition) to an image?
Adrianna - 2020-09-28

The syntax given for singular value decomposition is svd(x). I tried it with my image, but it didn't work. Can you tell me how to work with svd for im...

How to change certain values in a 3 layer matrix and fill in another matrix?
Ariah - 2020-09-28

I have a 3 layer matrix that is defined as NDVI which has 7971 rows, 7851 columns, and 3 layers. I am working with blue, red, and green bands from sat...

image processing from webcam
Oliviawilliams02 - 2020-09-26

I have an image with a large rectangle and inside that rectangle there are a red circle and a green circle.And I want to locate the center of red circ...

What is the fastest way to do 2-D convolution in Matlab?
technicalsouce9 - 2020-09-26

Hi,I have a problem. What is the fastest way to do 2-D convolution in Matlab? I know there are some build-in functions, such as imfilter,conv2, filter...

How do i loop this fuction and each time use a different AVI for processing
Lucian - 2020-09-26

I made a Function that will get an AVI and remove the background by using Z-stack so the image is easier to track the moving objects. But i want to do...

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