comparing an image with .mat file with 100 images

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ravi 2013-8-27

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https://ww2.mathworks.cn/matlabcentral/answers/85730-comparing-an-image-with-mat-file-with-100-images

评论： Image Analyst 2022-6-24

I have created .mat file with 100 images of cars and now i want to compare the image with cars, with the images in the .mat file and have to display the cars in the image separately can any one give me a sample code for this please.

thanks in advance.

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Saad Rana 2022-6-24

Can you help me with creating .mat file with 85 images?

Image Analyst 2022-6-24

Sure, start a new question and say why you need that versus just having the images stored in normal files in a folder, or using an imageDatastore, after reading this:

TUTORIAL: How to ask a question (on Answers) and get a fast answer

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回答（1 个）

Image Analyst 2013-8-27

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https://ww2.mathworks.cn/matlabcentral/answers/85730-comparing-an-image-with-mat-file-with-100-images#answer_95227

How about subtracting them? We have no idea how you'd like to compare the test image to the images stored in the .mat file.

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ravi 2013-8-28

编辑：ravi 2013-8-28

Walter Roberson i have seen that link 2 days back, but the problem is i cant understand whether i have to give the region that i am interested in every image in positive sample which is saved in .mat file.As i need to identify car in the image whether i have to draw the box around the car in every image in the positive sample before saving them in .mat file.

please give me clarification on that.

thanks

Image Analyst 2013-8-28

If you have the bounding box, you can call imcrop() to save that subimage to a file - you don't actually need to plot the box around the car in the overlay in order to crop it and save it.

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