JPG to GIF animation

Question

Mathew Smith 2022-9-12

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1803410-jpg-to-gif-animation

评论： Mathew Smith 2022-9-12

Hi,

I am using this code for conversion of JPGs to GIF animation. It works but produces strange colors (first and second picture in animation have incorrect colors and third is OK).

I would like to ask you to hep with correction of the code.

clear
clc
%// Image source: http:\\giantbomb.com
[A,map] = rgb2ind(imread('obr_0.jpg'),256);
[B,map] = rgb2ind(imread('obr_01.jpg'),256);
[C,map] = rgb2ind(imread('obr_99.jpg'),256);
ImageCell = {A;B;C};
%// Just to show what the images look like (I removed spots to make sure there was an animation created):
%// Create file name.
FileName = 'test.gif';
for k = 1:numel(ImageCell)
    
    if k ==1
        
        %// For 1st image, start the 'LoopCount'.
        imwrite(ImageCell{k},map,FileName,'gif','LoopCount',Inf,'DelayTime',1);
    else
        imwrite(ImageCell{k},map,FileName,'gif','WriteMode','append','DelayTime',1);
    end
    
end

BR

Mathew

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Answer 1

Simon Chan 2022-9-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1803410-jpg-to-gif-animation#answer_1051725

在 MATLAB Online 中打开

The colormap for the first two figures are overwritten by the third one in the following:

[A,map] = rgb2ind(imread('obr_0.jpg'),256);
[B,map] = rgb2ind(imread('obr_01.jpg'),256);    % Overwrite 1st time
[C,map] = rgb2ind(imread('obr_99.jpg'),256);    % Overwrite 2nd time