abder.rahman.ali's articles:

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=?windows-1252?Q?Concateniting_the_results_of_two_=93finds=94?= 1 19 (2/23/2013 5:04:35 PM) comp.soft-sys.matlab I have the following function that based on some criteria sets some pixels to the value `1`, and based on another criteria sets the other pixels to the value `0`. Note here that for each elements in `x` the... Med

=?windows-1252?Q?Distance_between_vectors=2C_and_does_=93bsxfun=94_do_a?= =?windows-1252?Q?nything_here=3F?= 0 8 (2/23/2013 1:55:01 PM) comp.soft-sys.matlab Say we have the following matrix x: x = [1 4 3; 6 4 3; 6 9 3; 2 4 3; 5 4 0; 5 3 1; 6 4 7]; And, say that from that matrix, we selcted the following pixels to be our points of interest: p = [4 6 9 0... Abder

Error and handling output (returning a set of values) 1 12 (2/13/2013 2:57:28 PM) comp.soft-sys.matlab I have the `test` function shown below written in `matlab`, and underneath the `test` function you can find other functions that the `test` function uses. Here, I have two points: **1- When I run the prog... Abder

The connected component of a pixel 1 48 (2/17/2011 12:42:04 PM) comp.soft-sys.matlab When I want to find the connected component of a pixel in an image, do the value(s) of the connected component have to belong to the set of the gray level values of an image? Thanks. ... Abder

Adjaceny vs. Connectivity 2 35 (2/17/2011 12:31:03 PM) comp.soft-sys.matlab Is is the same when talking about "Adjaceny" and "Connectivity"? Or, they are totally different terms? Thanks. ... Abder

Path between two pixels #2 0 59 (2/17/2011 12:24:04 PM) comp.soft-sys.matlab In the "Fundamentals of Digital Image Processing" by Annadurai book, it mentions the following: A path between two pixels p and q with coordinates (x0,y0) and (xn, yn), respectively, is a sequence of pixels wi... Abder

Path between two pixels 1 44 (2/17/2011 12:23:03 PM) comp.soft-sys.matlab In the "Fundamentals of Digital Image Processing" by Annadurai book, it mentions the following: A path between two pixels p and q with coordinates (x0,y0) and (xn, yn), respectively, is a sequence of pixels wi... Abder

m-connectivity 1 60 (2/17/2011 8:29:04 AM) comp.soft-sys.matlab What is the benefit of "m-connectivity" in image processing? Thanks. ... Abder

Why are real world images considered continous? 2 58 (2/15/2011 11:34:04 AM) comp.soft-sys.matlab Why are real world images considered continous? And, thus, have to be converted to digital images to be used on a computer? Thanks. ... Abder

Grey level value 2 51 (2/15/2011 11:14:04 AM) comp.soft-sys.matlab What is meant by a grey level value? Thanks. ... Abder

abder.rahman.ali's replies:

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def swfupload_file=(data) 2 33 (9/16/2010 1:02:18 PM) comp.lang.ruby Following this tutorial: http://jimneath.org/2008/05/15/swfupload-paperclip-and-ruby-on-rails/ I want to ask about this method definition: def swfupload_file=(data) What is meant by the =(data) part? Thanks... abder.rahman.ali (180)

How can this Java method header be represented in Ruby 7 154 (9/20/2010 9:07:52 AM) comp.lang.ruby I have a Java method header that looks something like follows: public static short[][] setFile(String fileName) { ... } How can I write this in Ruby? Thanks. -- Posted via http://www.ruby-forum.c... Abder

name = upload['datafile'].original_filename 2 139 (9/20/2010 12:02:39 PM) comp.lang.ruby At: http://www.tutorialspoint.com/ruby-on-rails/rails-file-uploading.htm And, regarding: name = upload['datafile'].original_filename It mentions that "upload" is a CGI object. If you look at the he... abder.rahman.ali (180)

File.open(path, "wb") 2 65 (9/20/2010 12:31:13 PM) comp.lang.ruby At: http://www.tutorialspoint.com/ruby-on-rails/rails-file-uploading.htm And, in: File.open(path, "wb") What is meant by "wb"? Thanks. -- Posted via http://www.ruby-forum.com/. ... abder.rahman.ali (180)

unable to open X server `' (Magick::ImageMagickError) 15 657 (9/6/2010 3:42:11 AM) comp.lang.ruby I have written a Ruby script "dicom_info.rb", and when I try running it, I get the following error. Why is that? And, how can it get solved? C:\Users\Abder-Rahman\Desktop\Research\dicom>ruby dicom_info.rb ... abder.rahman.ali (180)

Installing ActiveRecord gem 4 155 (9/7/2010 3:07:28 PM) comp.lang.ruby I'm trying to install the ActiveRecord gem, but getting the following: C:\Users\Abder-Rahman\Desktop\Research\dicom>gem install activerecord ERROR: While executing gem ... (Gem::RemoteFetcher::FetchError... Abder

How can I solve this issue? 4 41 (9/7/2010 3:27:41 PM) comp.lang.ruby I have a script (Attached), which is based on this tutorial: http://dicom.rubyforge.org/tutorial1.html When I run the script, I get the following: C:\Users\Abder-Rahman\Desktop\Research\dicom>ruby dicom_info... abder.rahman.ali (180)

ActiveRecord and incrementing the key 5 57 (9/4/2010 3:17:16 PM) comp.lang.ruby In "The Rails Way" book, the following is mentiond in Chapter (6):Working with ActiveRecord "Also by convention, ActiveRecord will expect an id column to use as primary key. It should be an integer and [[incre... abder.rahman.ali (180)

p vs. print 21 108 (9/2/2010 7:16:42 PM) comp.lang.ruby I wrote the following scripts from section (2) here: http://ruby.gfd-dennou.org/tutorial/gokuraku/index-e.html require "rubygems" # Not in the example require "narray" ary1 = NArray.sfloat(3,4) When I ... Abder

uninitialized constant NArray (Name Error) 9 38 (9/2/2010 3:09:33 PM) comp.lang.ruby Following section (2) here: http://ruby.gfd-dennou.org/tutorial/gokuraku/index-e.html Trying to run this part of script I have so far: require 'narray' ary1 = NArray.sfloat(3,4) I get the following error: ... abder.rahman.ali (180)