comparing an image with .mat file with 100 images

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.

[Rahul Phadatare]

i am new in matlab, leaf disease detection matlab code in this number of disease images separately available(disease wise) so how i create .mat file for this please help mi

[Image Analyst]

Rahul. Use save() to create a .mat file. See the help for examples on how to use save().

[Saad Rana]

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

[Image Analyst]

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

Answer 1

[Image Analyst]

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.

[ravi]

With the knowledge i have, i think that train cascade Object detector is used to compare the image with the positive sample of images stored in the .mat file but i am not clear about it.So please give the example to compare the image with images in the .mat file by using train cascade object detector.

[Walter Roberson]

"train" is a verb in "train cascade object detector", not an adjective. So you need to look for information on "cascade object detector" and how to train such things. See http://www.mathworks.com/help/vision/ug/train-a-cascade-object-detector.html

[Image Analyst]

Sorry, I don't have the Computer Vision System Toolbox so I can't help you with its functions.

[ravi]

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]

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.