save .TIFF file

8 views (last 30 days)
Soum
Soum on 8 Jun 2016
Answered: Walter Roberson on 11 Jun 2016
I have an image (medical image) stocked as .TIFF file, when I read it I’ve found 4 matrix the first, the second and the third one are the RGB components of my image the fourth one is a binary matrix (contains only 1 values), I dont know what is it. I’ve denoised it but the problem is : -when I save it I got 000 values (black image) but when I open it under matlab I see that it is not an empty matrix this is my code :
t = Tiff([source2,'',num2str(v)],'w');
tagstruct.ImageLength = 1000;
tagstruct.ImageWidth = 1024;
tagstruct.Photometric = Tiff.Photometric.RGB;
tagstruct.BitsPerSample = 32;
tagstruct.SamplesPerPixel = 4;
tagstruct.RowsPerStrip = 1000;
tagstruct.ExtraSamples =Tiff.ExtraSamples.AssociatedAlpha;
tagstruct.PlanarConfiguration = Tiff.PlanarConfiguration.Chunky;
tagstruct.Software = 'MATLAB';
tagstruct.SampleFormat=Tiff.SampleFormat.IEEEFP;
t.setTag(tagstruct);
t.write(single(Iy_d));
t.close();
I want to read the head of the file in order to check my BitsPerSample but I couldn’t
Xn= imread([source,'', num2str(v)],'tif')
I got this error :
info = imfinfo(Xn);
Error using imfinfo (line 80)
Expected FILENAME to be one of these types:
char
Instead its type was uint8
this make me confused because it shouldn't be uint8 !, So I convert it to double
Xn=im2double(imread([source,'', num2str(v)],'tif'))
But without any avail
  2 Comments
Soum
Soum on 8 Jun 2016
Thank you I didn't know before what is an RGBA image. I'll try based on this information

Sign in to comment.

Answers (1)

Walter Roberson
Walter Roberson on 11 Jun 2016
imfinfo needs to be applied to the image file name, not to what was read in from the file.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by