Mar 7, 2011

Automatic Species ID : Lepidochelys olivacea

The automatic species ID procedure I'm working on, follows these steps of image manipulation and decision making to detect Lepidochelys olivacea from a photo. For demonstration I'm using an image contributed by M.A. Hannan.

1. Convert RGB image to Lab color space
2. Enhance 'b' channel of the image

3. Complement 'b' channel of the image

4. Threshold complemented 'b' channel of the image with a predefined constant, 210 for this image

5. Dilate the resulting image

6. Fill the resulting image

7. Erode the resulting image

8. Mark the blob with maximum area

9. If area of the marked blob is not less than 30% of the image size then declare detection of LO

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