How can I plot intensity profile and colormap for a stack of images converted as avi video file

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Yatavakilla Amarendra Nath 2021-2-23

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https://ww2.mathworks.cn/matlabcentral/answers/753684-how-can-i-plot-intensity-profile-and-colormap-for-a-stack-of-images-converted-as-avi-video-file

回答： Rahul about 20 hours 前

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Answer 1

Rahul about 20 hours 前

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https://ww2.mathworks.cn/matlabcentral/answers/753684-how-can-i-plot-intensity-profile-and-colormap-for-a-stack-of-images-converted-as-avi-video-file#answer_1548018

Hi @Yatavakilla Amarendra Nath,

To achieve the desired result of plotting the intensity profile and colormap for stack of images from 'avi' video file, consider using the following functions:

'VideoReader': To read the video file.
'readFrame': To read a particular frame from the 'VideoReader' object. (Can be used in a loop)
'improfile': To create and plot the intensity profile of the image.
'colormap': To create the colormap with repect to the plot generated.

The following MATLAB Answers also mention how 'improfile' and 'colormap' functions can be used to obtain the intensity profile and colormap for images:

https://www.mathworks.com/matlabcentral/answers/389889-how-to-plot-intensity-profile-of-an-image

https://www.mathworks.com/matlabcentral/answers/522931-how-to-display-the-intensity-of-2d-image-as-a-colormap

Refer to the following MathWorks documentations to know more:

'VideoReader': https://www.mathworks.com/help/releases/R2021a/matlab/ref/videoreader.html

'readFrame': https://www.mathworks.com/help/releases/R2021a/matlab/ref/videoreader.readframe.html

'improfile': https://www.mathworks.com/help/releases/R2021a/images/ref/improfile.html

'colormap': https://www.mathworks.com/help/releases/R2021a/matlab/ref/colormap.html

Thanks.