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hw3 - 20.309 Biological Instrumentation and Measurement...

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20.309: Biological Instrumentation and Measurement Laboratory Fall 2006 Homework Set 3 Due by 12:00 noon on Friday, Nov. 3, 2006 This is a hybrid lab/homework set. It will count as a homework, and be graded accordingly, but most of the work should be done in the lab. Feel free to work outside the lab, if you have access to matlab with the image processing toolbox. However, you will find it useful to get help and advice from instructors. Definitely don’t put off working on this until the night before you will not be able to finish. 1 Objectives 1. Learn to use matlab to manipulate image files in a variety of formats, sizes, and resolutions. 2. Explore several different image processing techniques, and learn to improve images with them. 3. Extract quantitative data from images. 4. Prepare some analysis/processing algorithms for future experimental modules. 2 Image Files All the image files you will use in this lab can be found on the lab PCs in the C: \ BioInst \ imgproc directory. They are of different sizes, file formats, and aspect ratios. Here we will only work with grayscale files (one channel of intensity data), but the techniques generalize for working with color (three or four channels). 3 Guidelines and Hints for Image Processing in MATLAB As usual in matlab , your best resource is its Help function. Specifically for this lab, you’ll want to start by
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