Hi everyone. For the last part of my project I have to see how does my program respond to a magnified image. The magnification has to be a part of the code . I've tried imresize() , it will be magnified but the dimension will change too and that is a problem to my code. I wanted to know how can I scale or magnify my image but the dimension stays the same. My images are grayscale back background with a white Persian alphabet in the center(I've attached a sample).
I actually need to magnify the alphabet .
Hi
Take the time to look in the following addresses if you solve your problem with 'zoom' .
https://www.mathworks.com/matlabcentral/answers/398165-i-m-a-new-user-of-matlab-i-want-to-write-a-code-for-zooming-an-image-by-a-factor-of-1-5-by-pixel-re
https://www.mathworks.com/matlabcentral/answers/244260-image-processing-zoom-in-process-image-zoom-out
https://www.mathworks.com/help/images/ref/immagbox.html
Try to understand, what do you mean by magnification. And dimensions will definitely change, what else you are expecting?
To magnify an image without changing dimensions (zoom in), MATLAB provides a GUI based image viewer which can be invoked using the IPT function "imtool". Once it is open within the image viewer you can use the Zoom tool for a magnified view. You can also use the Pixel Region Tool tool for reading the pixel values of a selected region.
Tauseef Gulrez like zooming and cropping?... I tried to magnify and crop but I couldn't use the imcrop properly. it just opened the image and asked me to crop it.
But why u need to crop? Just take all the white pixels and you will get the letter. Now if u want to magnify it, just populate the boundaries. But may I ask u why u want to magnify it? I do not think u can do it manually, you have to write a script to do that for you. Let me know what exactly you are after.
Tauseef Gulrez my program does the optical character recognition. I have to compensate the error duo to the word rotation and magnification. I did the rotation part simply but I got this problem with magnification part. Dimension of the image should remain the same because my vanderlugt filters are in a particular size and with different dimensions I can't multiply it to my input image. Then if I change their dimension too, the word in both input and filter will be the same and that won't be a challenge to the program to deal with.
I think, u have to magnify the image while keeping the image size same. That is u hv to magnify the image in place.
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