Change name of image file
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Hi all, Please how can i change the name of an existing image file. I have used "imread" to read the image and "imwrite" to export with the name that i want. But the exported image is in greyscale and not coloured.
Please how can I export the imported coloured and a coloured file?
thanks in advance
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Image Analyst
2015-2-8
Use movefile() to rename files:
movefile(oldFileName, newFileName);
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Olu adroit
2015-2-8
Image Analyst
2015-2-8
编辑：Image Analyst
2015-2-8
If you want to rename but use the current time as the timestamp, I'd use copyfile() instead of movefile(). This will create a brand new file that I think should have the current time. Then you can delete the source file. Be aware that Windows maintains three different times stamps for a file: created, modified, and last accessed. If not all 3 are changed with copyfile(), then you'll have to first call imread() and then call imwrite() to create a totally brand new file and this will definitely have all three times as the current time.
Use fileparts() and sprintf() to create the brand new filename. For example
imageArray = imread(oldFileName);
[folder, baseFileName, ext] = fileparts(oldFileName);
% Change base file name and extension.
newBaseFileName= sprintf('%s_changed.PNG', baseFileName);
newFullFileName = fullfile(folder, newBaseFileName);
imwrite(imageArray, newFullFileName); % New file will be PNG instead of TIF
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Erik S.
2015-2-8
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Hi, Use this code to generate a time stamp datestr(now);
With this Matlab returns date-month-year Hour:Min:Sec You can use for example strsplit if you want a part of the date of the time only.
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