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Viewing posts tagged Image

Morphology is Fun!

Jan. 1th, 2009 In: None By: Brad Montgomery 4 comments

Morphological operations are very common in image processing. The two most basic of these are Erosion and Dilations, and from these, additional morphological operations can be performed. While there is an abundance of literature on the topic of morphology, I often like to view concrete examples of the operations.

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pyCropper

May 5th, 2008 In: None By: Brad Montgomery 4 comments

Occasionally, I need to crop some images. I suspect this happens to a lot of people, and they simply use their favorite photo editor to perform the task. For a few images, this works just fine. Plenty of people have Photoshop, the Gimp, or even iPhoto.

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Computing Correlation Coefficients in Python

Dec. 12th, 2007 In: None By: Brad Montgomery 6 comments

A useful technique for matching objects in images is to compute the images' Correlation Coefficients. Essentially, you take any image and compute the correlation between it and another, smaller image containing ONLY the object that you want to identify. The resulting correlation image should contain bright spots where there is a high correlation (or match) between the two images.

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