I downloaded this just now and paged through the labs.
It looks very nice and very impressive. I do not much about working with images. I do have an assignment to work with .bmp images and locate an instrument in a phantom. That is a a transparent phantom with four holes around the edges and one in the center. It is round like a clock. On the .bmp image I can clearly see the black spot where the instrument is with the phantom white or rather gray around it. Around the phantom there is black also. I have opened it with transform image and viewimage as well as with viewbmp and it looks ok visually but how to operate on it with programs to find the spots I do not know how to do. I need to find with J where the phantom is located in the image and then find the black spot inside the phantom. getting the x,y coordinates of the leftmost, right, top and bottom of the phantom would be ideal and similarly getting the x,y coordinate of the black spot inside the phantom circle. Can someone point me in a direction how to perform reading like that from a .bmp image - preferably with with J tools? This may be dead easy but for me at the moment it is not. I am told people do this with Matlab all the time but I rather try out with J if at all possible. 2007/1/17, Cliff Reiter <[EMAIL PROTECTED]>:
Just a note that the image3 addon has been updated for J6.01 and is available from the wiki jsoftware pages. Directory changed to ~addons/media/image3 Help files for the addon are at http://ww2.lafayette.edu/~reiterc/j/image3help/index.html if you want to know what the addon does. Also, a new addon has been added that depends upon the image3; The fvj3 addon ~addons/graphics/fvj3 It is primarily meant to provide scripts and materials for the 3rd edition of Fractals visualization and J (coming soon), but the addon may be of use in its own right, and there are several labs, designed to explore the scripts (not book teasers). But I have to add a tease since I added a script to the fvj3 addon that can be used to replace missing image data (bafrmid.ijs) and running the corresponding lab is kind of amusing. An illustration of what "replacing missing image data" means can be seen at http://ww2.lafayette.edu/~reiterc/mvq/bafrmid/index.html J is cool. Best, Cliff -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 http://www.lafayette.edu/~reiterc ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
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