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• Computer Vision Website Image Slideshow help

  - by msandbot

  Hi, I'm making an online display of the output of a computer vision algorithm. After running the algorithm I am left with a folder of about 1000 16 bit .tiff files. I need to put those on the website in a list for so that the researchers can click through and find the list. Also there needs to be an image frame with an "animated gif" feel that can be started stopped and played in reverse. Any ideas on the best way to do this? What language to use? I made a simple website in Ruby on Rails but I don't know if it has the capabilities to do what I require.

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• How to create Binary Tree in a image(.jpeg)

  - by abc

  I have data structured in Binary tree format, i want to represent it into an image(*. jpeg) then i need to display that image on web page and all the data will come @ runtime, so image processing should be done @ runtime, how to do this ? This is what my thought solution any other suitable solution are also welcomed, web site is in .NET , i am thinking to produce image using java api then integrate it to .NET wither through WEB-SERVICE call or any other solutions are also welcomed.

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• Deserialize array values to .NET properties using DataContractJsonSerializer

  - by James Cadd

  I'm working with the DataContractJsonSerializer in Silverlight 4 and would like to deserialize the following JSON: { "collectionname":"Books", "collectionitems": [ ["12345-67890",201, "Book One"], ["09876-54321",45, "Book Two"] ] } Into classes like the following: class BookCollection { public string collectionname { get; set; } public List<Book> collectionitems { get; set; } } class Book { public string Id { get; set; } public int NumberOfPages { get; set; } public string Title { get; set; } } What's the proper place to extend DataContractJsonSerializer to map the unnamed first array element in "collectionitems" to the Id property of the Book class, the second element to the NumberOfPages property and the final element to Title? I don't have control over the JSON generation in this instance and would like the solution to work with the Silverlight subset of .NET. It would be great if the solution could perform the reverse for serialization as well.

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• How to create a formatted localized string?

  - by mystify

  I have a localized string which needs to take a few variables. However, in localization it is important that the order of the variables can change from language to language. So this is not a good idea: NSString *text = NSLocalizedString(@"My birthday is at %@ %@ in %@", nil); In some languages some words come before others, while in others it's reverse. I lack of an good example at the moment. How would I provide NAMED variables in a formatted string? Is there any way to do it without some heavy self-made string replacements? Even some numbered variables like {%@1}, {%@2}, and so on would be sufficient... is there a solution?

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• Command line CSV viewer?

  - by Benjamin Oakes

  Anyone know of a command-line CSV viewer for Linux/OS X? I'm thinking of something like less but that spaces out the columns in a more readable way. (I'd be fine with opening it with OpenOffice Calc or Excel, but that's way too overpowered for just looking at the data like I need to.) Having horizontal and vertical scrolling would be great.

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• Building vs. Compiling (Java)

  - by sixtyfootersdude

  Thinking that the answer to this is pretty obvious but here it goes: When I am working on a small project for school (in java) I "compile" it. On my coop we are using ant to "build" our project. I think that compiling is a subset of building. Is this correct? What is the difference between building and compiling?

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• Display small form while main form is "locked"

  - by daemonsvk

  Hi there, i'm thinking about writing a WPF program that would require login and password at the app startup. I thought about small form with two textboxes as a login form. User will have to fill in his details and then the main form of the application will be unlocked. How will you solve this? Thanks for your answers, daemonsvk

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• Android: Playing an audio clip onClick

  - by fordays

  How do I set up an audiofile to play when a user touches an image. Where should I store the audio file and what code should I use to actually play the file? I don't want to bring up the MediaPlayer interface or anything like that. I was thinking of doing it like this: foo = (ImageView)this.findViewById(R.id.foo); foo.setOnClickListener(this); public void onClick(View v) { if (foo.isTouched()) { playAudioFile(); } } Thanks

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• Matrix multiplication in java

  - by Chapax

  Hi, I wanted to do matrix multiplication in Java, and the speed needs to be very good. I was thinking of calling R through java to achieve this. I had a couple of Qs though: Is calling R using Java a good idea? If yes, are there any code samples that can be shared? What are the other ways that can be considered to do matrix multiplication in Java? Many thanks. --Chapax

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• validation using jquery

  - by Indranil Mutsuddy

  Hello friends The below link has my web page and i would like to validate all the fields using jquery, the problem is I dont have much space around the fields to display ordinary error messages. I am am a novice and thinking of using jquery validation, so could any of you suggest me the best possible way to do that. http://www.4shared.com/photo/BowU9nFB/page.html Thanking You, Indranil

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• Variation on Hamiltonian path problems

  - by Robert

  Thinking about if we modify the definition of Hamiltonian path as we need to go through every edge once,but can pass vertex any times,is there still an algorithm available? How should I modify the original Hamiltonian algorithm to account for this?

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• F# - specific agile tools

  - by user128807

  Are there any F# - specific agile software development tools? I'm thinking of things like a unit testing framework.

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• Where do you extend classes in your rails application?

  - by ro

  Just about to extend the Array class with the following extension: class Array def shuffle! size.downto(1) { |n| push delete_at(rand(n)) } self end end However, I was wondering where a good place to keep these sort of extensions. I was thinking environment.rb or putting in its own file in the initializers directory.

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• What's the best way to get to know linux or BSD kernel internals?

  - by Michal Piaskowski

  I'd like to gain better knowledge of operating system internals. Process management, memory management, and stuff like that. I was thinking of learning by getting to know either linux or BSD kernel. Which one kernel is better for learning purposes? What's the best place to start? Can you recommend any good books?

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• Can you use a prepared statement in MySQL with "On Duplicate Key Update"?

  - by Jim H.

  I can't find any reference to using "ON DUPLICATE KEY UPDATE" with MySQL and PHP. Am I correct in thinking that this is not possible? -Jim

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• Difference between chart, plot and graph

  - by Pradyumna

  I'm thinking of what would be the right terms to use in the UI of my new program, when referring to graphical data representations - i.e., whether to call them "charts", "plots" or "graphs". I was wondering how these terms are different, and when is it appropriate to use each of them? Thanks, Pradyumna

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• Cannot implicitly convert type 'char*' to 'bool'

  - by neeraj

  i was trying to passing pointer value in the function , i really got stuck here I am a beginner , not getting what value should be put this is programme from the reference of the book "Cracking the coding interview " By Gayle Laakmann McDowell, class Program { unsafe void reverse(char *str) { char* end = str; char tmp; if (str) //Cannot implicitly convert type 'char*' to 'bool' { while(*end) //Cannot implicitly convert type 'char*' to 'bool' { ++end; } --end; while(str<end) { tmp = *str; *str+= *end; *end-= tmp; } } } public static void Main(string[] args) { } }

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• Is there a way to set a handler function for when a set of events has happened?

  - by allyourcode

  eg I have two concurrent AJAX requests, and I need the result from both to compute a third result. I'm using the Prototype library, so it might look something like this: var r1 = new Ajax.Request(url1, ...); var r2 = new Ajax.Request(url2, ...); function on_both_requests_complete(resp1, resp2) { ... } One way would be to use polling, but I'm thinking there must be a better way.

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• .htaccess, two consecutive rewrites?

  - by Matthew Haworth

  I need to take a url, "/ServiceSearch/r.php?n=blahblah", and have it go to "/search/blahblah/" so that it appears in the browser as "/search/blahblah", but I actually want it to REALLY be going to "r.php?n=ServiceSearch&n=blahblah".. So I was thinking I'll need to rewrite the first URL to "/ServiceSearch/r.php?n=blahblah" and then the second url, "/search/blahblah/", to the third, "r.php?n=ServiceSearch&n=blahblah". Well, I know this is wrong, but it's my best guess. I'm really struggling with it.

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• Is there a way to combine IN and LIKE in MySQL?

  - by abeger

  I'm currently running a query like this: SELECT * FROM email WHERE email_address LIKE 'ajones@%' OR email_address LIKE 'bsmith@%' OR email_address LIKE 'cjohnson@%' The large number of OR's bothers me. Is there a way to condense this up with something akin to an IN operator, e.g.: SELECT * FROM email WHERE email_address LIKE ('ajones@%', 'bsmith@%', 'cjohnson@%') Or is this just wishful thinking?

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• Can I view a list of public variables of some Adobe Air app or web flash file from another app?

  - by Parris

  I was thinking about creating making AIM pluggin that checks pandora one (desktop) or pandora website periodically to see what is currently playing and update a user's status. I suppose the main question is there a clever way to access a "public" variable from some open Adobe Air process? I KNOW this sounds like some crazy security flaw, but it may also be a feature. I am pretty sure javascript can potentially handle it. Thanks!

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• How to find out if an object is of <type> or a decendant of <type>

  - by Vaccano

  I have the following code: foreach (var control in this.Controls) { } I want to do something like control.Hide() in there. But the items in the this.Controls collection are not of type Control (they are Object). I can't seem to remember the safe way to cast this to call hide if it is really of type Control and do nothing otherwise. (I am a transplanted delphi programmer and I keep thinking something like control is Control.)

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• How to incorporate jquery menu with asp.net membership

  - by wonde

  Hi guys, I am using Asp.net menu control for the web site that I am currently building and I am thinking to change to work with jQuery menu. So the current menu (Asp.net menu control) works with asp.net membership as many of knew.And the menu changed based on the role of the user who logged in. Is it possible to change the menu control to jQuery menu,with out affecting the membership functionality ?

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• How to make a table view which can be scrolled for ever?

  - by mystify

  I have a set of 100 rows, pretty similar to values which can be selected in a picker. When the user scrolls the table, I want the rows to be appended like an forever-ongoing assembly-belt. So when the user scrolls down and reaches the row 100, and scrolls even further, the table view will show again row 1, and so on. Reverse direction same thing. My thoughts: don't display scroll indicators (they would make not much sense, probably) what value to return in the numberOfRows delegate method? This infinity constant? in cellForRowAtIndexPath: simply wrap the index around when it exceeds bounds?

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• Detecting Markers Using OpenCV

  - by Hamza Yerlikaya

  I am trying to detect various objects containing colored markers, so a red blue green marker identifies object A, and a red blue red marker identifies object B. My problem is I can't use template matching cause objects can be rotated, currently I am thinking about check for each color then find the object by checking the distance between colors but it seems inefficient, so my question is there a better way to do this?

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