how to perform template matching in matlab??

How to get the correct match for the template in the image? I have attached a template here and i need to find its match in images which are similar to the one from which i cropped the template.

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[SAQIB SHEIKH]

Fisrt You make the Imagefile for your fonts in this file every font image must be in 1 bit depth. Seond Create your Font Template..

Third Apply Template Matching for ur testing data and get your Result.

For More Information Visit

https://www.mathworks.com/matlabcentral/fileexchange/40426-vehicle-number-plate-recognition?focused=3778950&tab=function

[Image Analyst]

Can you move this down to the Answer section, instead of up here which is used to ask posters for clarification? Thanks in advance.

Answer 1

[Image Analyst]

You can use normalized cross correlation. See attached demo.

Or use the Computer Vision System Toolbox. See the Feature-Based Object Detection section on this page: http://www.mathworks.com/products/computer-vision/features.html#feature-detection%2C-extraction%2C-and-matching

[AFFY]

computer vision toolbox is not available in r2011a??

[Image Analyst]

Probably not. Time to upgrade if your version is 4 years old.

[Fadi Alsuhimat]

can I know how to calculate the accuracy for different template matching methods, like:

Fast Template Matching using SSDXCORR

Performance index Method

Pseudo Correlation

Cross Correlation method

???

[Image Analyst]

Maybe immse(), psnr(), or ssim()?

[Ahmad Gad]

Hello @Image Analyst.

I tried normxcorr2_demo.m, and the demo seems to be fine. When I rotated the template by 45 degrees, it failed to locate it in the image correctly.

I guessed that normxcorr2() may not be the choice if there is orientation difference. I am wondering if there is any MATLAB function that can do this correlation or matching but accounts also for rotation. In my application, I have the object is taking many different orientation in the images.

Thanks!

[Image Analyst]

@Ahmad Gad, see https://www.mathworks.com/products/computer-vision.html#feature-detection if your template may be rotated or scaled in the actual scene.

[Ahmad Gad]

Thanks a lot for the reply. I will definitely look into this.