Comments for Steve on Image Processing
http://blogs.mathworks.com/steve
Steve Eddins manages the Image & Geospatial development team at MathWorks and coauthored Digital Image Processing Using MATLAB. He writes here about image processing concepts, algorithm implementations, and MATLAB.Thu, 25 Jun 2015 15:44:54 +0000hourly1http://wordpress.org/?v=4.0.1Comment on New image batch processor app in R2015a by michael
http://blogs.mathworks.com/steve/2015/06/23/new-image-batch-processor-app-in-r2015a/#comment-28164
Thu, 25 Jun 2015 15:44:54 +0000http://blogs.mathworks.com/steve/?p=1338#comment-28164i can run it for example i converted rgb2gray and see the output .
after generated the code there was function
[imageFiles, subDirs] = getAllImages(inDir,includeSubdirectories)
so it is similar to read all use imageSet so i believe it is different approach for processing multiple images.
]]>Comment on New image batch processor app in R2015a by Steve Eddins
http://blogs.mathworks.com/steve/2015/06/23/new-image-batch-processor-app-in-r2015a/#comment-28163
Thu, 25 Jun 2015 12:37:57 +0000http://blogs.mathworks.com/steve/?p=1338#comment-28163Michael—The doc page you linked to shows the basic usage. You create an imageSet based on particular folder location, and then you can call read (probably in a for loop) to read and then process all the images one at a time. Do you have a specific question about its use?
]]>Comment on New image batch processor app in R2015a by michael
http://blogs.mathworks.com/steve/2015/06/23/new-image-batch-processor-app-in-r2015a/#comment-28162
Thu, 25 Jun 2015 12:32:04 +0000http://blogs.mathworks.com/steve/?p=1338#comment-28162hi how you combine the new command imageSet with batch processing http://www.mathworks.com/help/vision/ref/imageset-class.html
]]>Comment on Region filling and Laplace’s equation by Steve Eddins
http://blogs.mathworks.com/steve/2015/06/17/region-filling-and-laplaces-equation/#comment-28161
Thu, 25 Jun 2015 12:31:56 +0000http://blogs.mathworks.com/steve/?p=1333#comment-28161Aslak—I don’t think there’s a linear system formulation that will work for that. If you don’t need the computation to be fast, then you can use brute force with the Mapping Toolbox distance function.
]]>Comment on Region filling and Laplace’s equation by Aslak Grinsted
http://blogs.mathworks.com/steve/2015/06/17/region-filling-and-laplaces-equation/#comment-28160
Wed, 24 Jun 2015 20:23:22 +0000http://blogs.mathworks.com/steve/?p=1333#comment-28160My mask is in a regular Lat, long grid and covers the entire Earth similar to this: http://oceancolor.gsfc.nasa.gov/DOCS/DistFromCoast/
]]>Comment on Region filling and Laplace’s equation by Steve Eddins
http://blogs.mathworks.com/steve/2015/06/17/region-filling-and-laplaces-equation/#comment-28159
Wed, 24 Jun 2015 12:57:39 +0000http://blogs.mathworks.com/steve/?p=1333#comment-28159Aslak—I am not aware of a distance transform computation based on solving a linear system. In your problem, is your grid in lat-lon coordinates or map coordinates? And roughly what fraction of the sphere is covered by your grid?
]]>Comment on New image batch processor app in R2015a by Steve Eddins
http://blogs.mathworks.com/steve/2015/06/23/new-image-batch-processor-app-in-r2015a/#comment-28158
Wed, 24 Jun 2015 12:48:34 +0000http://blogs.mathworks.com/steve/?p=1338#comment-28158Clarification: I just learned that the app doesn’t let you overwrite the input files.
]]>Comment on Region filling and Laplace’s equation by Aslak Grinsted
http://blogs.mathworks.com/steve/2015/06/17/region-filling-and-laplaces-equation/#comment-28157
Wed, 24 Jun 2015 09:22:39 +0000http://blogs.mathworks.com/steve/?p=1333#comment-28157Thank you. I enjoyed this post. Is there a similarly linear sparse idea behind bwdist? I ask because I am sitting with a problem where I’d like to do something similar to bwdist, but on a sphere, where my mask is on a geographical grid. Do you think it would be possible to adapt the ideas behind bwdist algorithm to a sphere?
]]>Comment on Gray-scale dilation equation by Steve Eddins
http://blogs.mathworks.com/steve/2015/05/06/gray-scale-dilation-equation/#comment-28124
Mon, 11 May 2015 16:50:33 +0000http://blogs.mathworks.com/steve/?p=1321#comment-28124Roman—There are many different methods for skeletonization and pruning that have been published. Is there a particular set of methods that you are interested in?
]]>Comment on Gray-scale dilation equation by Roman Kris
http://blogs.mathworks.com/steve/2015/05/06/gray-scale-dilation-equation/#comment-28123
Sun, 10 May 2015 14:54:01 +0000http://blogs.mathworks.com/steve/?p=1321#comment-28123Hi Steve,
We use non-flat gray level dilation . And at this opportunity want ask you about another useful function
that I would glad to get in Matlab – skeletonization with prunning. At this moment we use it from other library ( SDC ).
This function looks general interest for many application.
Best regards,
Roman
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