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Back in October I introduced the concept of filter separability. A two-dimensional filter s is said to be separable if it can be written as the convolution of two one-dimensional filters v and... 続きを読む >>
Note
Steve on Image Processing with MATLAB has been archived and will not be updated.
Back in October I introduced the concept of filter separability. A two-dimensional filter s is said to be separable if it can be written as the convolution of two one-dimensional filters v and... 続きを読む >>
The Image Processing Toolbox function applycform can convert colors based on ICC profiles. ICC standards for the International Color Consortium, and an ICC profile typically contains... 続きを読む >>
Last time I showed off custom data cursors with a little utility function that displays object labels as data cursors: My code used label2rgb to display a "colorized" label... 続きを読む >>
A post in comp.soft-sys.matlab this week (see the third post in this thread) asked how to display graphically the numerical labels associated with each labeled object. In this blog I'll show a... 続きを読む >>
Blog reader Kathirvel wanted to know more about the MATLAB default image and how it was formed. I'll show briefly how it was done, using a small magic square and a Pascal matrix. m =...
Blog reader Kathirvel wanted to know more about the MATLAB default image and how it was formed.
I'll show briefly how it was done, using a small magic square and a Pascal matrix.
Blog reader Alex asked for an explanation of nonflat grayscale dilation and erosion. In the most commonly-used form of dilation, the structuring element defines a neighborhood of a pixel. In... 続きを読む >>
Back in September I wrote that I would be attending the IEEE International Conference on Image Processing this month, and that I would be giving a seminar on software development tools and... 続きを読む >>
Back in January, I wrote that I was using the MATLAB publish feature to generate some of my blog posts. Since then, I've used publish for almost every post. I write my post as a MATLAB script, and... 続きを読む >>
Reader JP asked me about my recent blog post on the Hough transform. Specifically, she wanted to know exactly how the rho-theta coordinate system was defined. When I answered her question, ... 続きを読む >>
Image display was added in version 4 of MATLAB, sometime around 1990. Many observant users noticed that the low-level image display object had default pixel values. In other... 続きを読む >>