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  • PIL saves image colour wrong

    - by Tom Viner
    I have an image. I want to resize it using PIL, but it come out like this. Even without a resize it still messes up the colour. Minimal code: from PIL import Image import os import urllib import webbrowser orig_url = 'http://mercedesclub.org.uk/images/stackoverflow-question/least-popular-colours-_-500-x-500.jpg' temp_fn, _ = urllib.urlretrieve(orig_url) im = Image.open(temp_fn) fn = os.tempnam() + '.jpg' im.save(fn) webbrowser.open(fn) I've tried Image.open(temp_fn).convert(format) with 'RGB', 'CMYK' and 'L' as formats, but still get weirdly coloured or grey results. When I load the image from my hard drive and I can see: >>>im.info {'adobe': 100, 'progression': 1, 'exif': 'Exif\x00\x00MM\x00*...\x7f\xff\xd9', 'adobe_transform': 100} >>>im.format 'JPEG' >>>im.mode 'CMYK' >>> im._getexif() {40961: 65535, 40962: 500, 40963: 500, 296: 2, 34665: 164, 274: 1, 305: 'Adobe Photoshop CS Macintosh', 306: '2010:02:26 12:46:54', 282: (300, 1), 283: (300, 1)} Thanks and let me know if you need any more data.

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  • Android - When to use Service

    - by Chris
    This question is related to my previous question: http://stackoverflow.com/questions/2786720/android-service-ping-url So I have an Android app that on the click of a button, opens up a web page. Now, in the background I want to call another http url for gathering stats. My question is does this have to be a service? I know a service is for background tasks that run for an indefinite period of time, while the user is busy doing something else. In my case, all I really need is to get the URL in the background, not show it to the user, instead show the web page to the user. Can I just not write code to get contents of the http url and fire up the activity that displays the web page? Coz all I want is to get the url in the background and be done with it. Or does this have to be done using the Service class? I am confused. Thanks Chris

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  • Handling dynamic data from javascript or rails

    - by 99miles
    I have page consisting of a calendar view ( http://code.google.com/p/calendardateselect/ ) as well as divs, each of which contain information about a person. In each div I want to have a link to a new controller and action, and pass the id for the person and the date selected in the calendar. I can think of a one way, but I'm thinking there's likely a better solution: 1) Do something like: =link_to_function "Week", "weekClicked(#{person.id})" Then in the weekClicked() javascript method I get the selected date from the calendar, such as: $('e_date').selected_date; then with javascript I could make a post request as mentioned here: http://stackoverflow.com/questions/133925/javascript-post-request-like-a-form-submit 2) Or, is there a way that I could make each link a button in it's own form and maybe have a hidden field that gets the selected date from the calendar as or before the form is submitted? I tried this too, but couldn't figure it out. This definitely seems like it's more on the right track than #1. Thanks.

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  • What is the Reason large sites don't use MySQL with ASP.NET?

    - by Luke101
    I have read this article from highscalability about stackoverflow and other large websites. Many large high traffic .NET sites such as plentyoffish.com, mysapce and SO all use .NET technologies and use SQL SERver for their database. In the article it says SO said As you add more and more database servers the SQL Server license costs can be outrageous. So by starting scale up and gradually going scale out with non-open source software you can be in a world of financial hurt. I don't understand why don't high traffic .NET sites convert their databases to MySQL as it is waay cheaper then SQL Server

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  • str_replace match only first instance

    - by kylex
    A followup question to http://stackoverflow.com/questions/3063704/ Given the following POST data: 2010-June-3 <remove>2010-June-3</remove> 2010-June-15 2010-June-16 2010-June-17 2010-June-3 2010-June-1 I'm wanting to remove ONLY the first instance of 2010-June-3, but the following code removes all the data. $i = 1; $pattern = "/<remove>(.*?)<\/remove>/"; preg_match_all($pattern, $_POST['exclude'], $matches, PREG_SET_ORDER); if (!empty($matches)) { foreach ($matches as $match) { // replace first instance of excluded data $_POST['exclude'] = str_replace($match[1], "", $_POST['exclude'], $i); } } echo "<br /><br />".$_POST['exclude']; This echos: <remove></remove> 2010-June-15 2010-June-16 2010-June-17 2010-June-1 It should echo: <remove>2010-June-3</remove> 2010-June-15 2010-June-16 2010-June-17 2010-June-3 2010-June-1

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  • Need an Android Devloper with access to a Motorola Droid of Nexus One (Android 2.1)

    - by Rob Kent
    Apologies if this is the wrong place to ask this. I have an Android app on the market that has a reported problem on Droid and Nexus One (both with Android 2.1). I don't have access to the handset and cannot find anyone with one where I live. The problem I'm experiencing is partially explained at: http://stackoverflow.com/questions/2700983/problem-saving-file-on-motorola-droid-android-2-1. If you are an Android developer with either of those handsets, I'm happy to pay a reasonable fee if you'll debug the app for me. I'll send you the source. Please email me at [email protected]

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  • Using multithreading for loop

    - by annelie
    Hello, I'm new to threading and want to do something similar to this question: http://stackoverflow.com/questions/100291/speed-up-loop-using-multithreading-in-c-question However, I'm not sure if that solution is the best one for me as I want them to keep running and never finish. (I'm also using .net 3.5 rather than 2.0 as for that question.) I want to do something like this: foreach (Agent agent in AgentList) { // I want to start a new thread for each of these agent.DoProcessLoop(); } --- public void DoProcessLoop() { while (true) { // do the processing // this is things like check folder for new files, update database // if new files found } } Would a ThreadPool be the best solution or is there something that suits this better? Thanks, Annelie

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  • Testing ASP.NET security in Firefox

    - by blahblah
    I'm not sure whether this question belongs on StackOverflow or SuperUser, but here goes nothing... I'm trying to test out some basic security problems on my personal ASP.NET website to see exactly how the custom validators, etc. work when tampering with the data. I've been looking at the Firefox extension TamperData which seems to do the trick, but it doesn't feel very professional at all. The issues I'm having with TamperData is that the textbox for the POST data is way too small to hold the ASP.NET view-state, so I have to copy that data into Emacs and then back again to be productive at all. I also don't like that there doesn't seem to be an option to only tamper with data which is from/to localhost. Any ideas on better extensions for the task or better methods to test it?

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  • How do you keep yourself and your co-workers from creating huge classes

    - by PieterG
    Stackoverflow users, How do you keep yourself from creating large classes with large bodied methods. When deadlines are tight, you end up trying to hack things together and it ends up being a mess which would need to be refactored. For me, the one way was to start with test driven development and that lends itself to good class design as well as the SRP (Single Responsibility Principle). I also see developers just double clicking on controls and typing out line after line in the event method that gets fired. What are your suggestions?

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  • Register view_helper zf 1.10.3

    - by Alexandr
    I create my view helper it located in /library/My/View/helpers/SpecialPurpose.php the class name is My_View_Helper_SpecialPurpose it have public function specialPurpose() it return some HTML i register this path in bootstrap.php $view = Zend_Layout::getMvcInstance()-getView(); $view-addBasePath('/my/view/helpers',"My_View_Helper"); when i tring specialPurpose();? in any view .phtml it trow exeption Message: Plugin by name 'SpecialPurpose' was not found in the registry; used paths: My_View_Helper_Helper_: /my/view/helpers\helpers/ Zend_View_Helper_: Zend/View/Helper/;D:/WWW/zends/application/modules/default/views\helpers/ P.S I read many post in stackoverflow but not one solutions not helped If it possible weácan how do this task with bootstrap and application.ini zf version 1.10.3

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  • Fade a color to white (increasing brightness)

    - by Jon B
    I want to make a text box in .NET "glow" yellow, and then "fade" to white (basically, by incrementally increasing the brightness). I think Stackoverflow does this after you've posted an answer. I know that increasing brightness is not all that simple (it's not just uniformly increasing/decreasing RGB), but I'm not sure how to do this. Perfect color accuracy is not important for this. I am using C#, although VB examples would be just fine, too. Edit: This is for Winforms.

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  • Code Analysis Error: Declare types in namespaces

    - by George
    Is VS2010, I analyzed my code and got this error: Warning 64 CA1050 : Microsoft.Design : 'ApplicationVariables' should be declared inside a namespace. C:\My\Code\BESI\BESI\App_Code\ApplicationVariables.vb 10 C:\...\BESI\ Here is some reference info on the error. Essentially, I tried to create a class to be used to access data in the Application object in a typed way. The warning message said unless I put my (ApplicationVariables) class in a Namespace, that I wouldn't be able to use it. But I am using it, so what gives? Also, here is a link to another StackOverflow article that talks about how to disable this warning in VS2008, but how would you disable it for 2010? There is no GlobalSuppressions.vb file for VS2010. Here is the code it is complaining a bout: Public Class ApplicationVariables 'Shared Sub New() 'End Sub 'New Public Shared Property PaymentMethods() As PaymentMethods Get Return CType(HttpContext.Current.Application.Item("PaymentMethods"), PaymentMethods) End Get Set(ByVal value As PaymentMethods) HttpContext.Current.Application.Item("PaymentMethods") = value End Set End Property 'Etc, Etc... End Class

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  • Examining mmaped addresses using GDB

    - by Mikeage
    I'm using the driver I posted at http://stackoverflow.com/questions/647783/direct-memory-access-in-linux/ to mmap some physical ram into a userspace address. However, I can't use GDB to look at any of the address; i.e., x 0x12345678 (where 0x12345678 is the return value of mmap) fails with an error "Cannot access memory at address 0x12345678". Is there any way to tell GDB that this memory can be viewed? Alternatively, is there something different I can do in the mmap (either the call or the implementation of foo_mmap there) that will allow it to access this memory? Note that I'm not asking about /dev/mem (as in the first snippet there) but amount a mmap to memory acquired via ioremap(), virt_to_phys() and remap_pfn_range()

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  • How to figure the read/write ratio in Sql Server?

    - by Bill Paetzke
    How can I query the read/write ratio in Sql Server 2005? Are there any caveats I should be aware of? Perhaps it can be found in a DMV query, a standard report, a custom report (i.e the Performance Dashboard), or examining a Sql Profiler trace. I'm not sure exactly. Why do I care? I'm taking time to improve the performance of my web app's data layer. It deals with millions of records and thousands of users. One of the points I'm examining is database concurrency. Sql Server uses pessimistic concurrency by default--good for a write-heavy app. If my app is read-heavy, I might switch it to optimistic concurrency (isolation level: read uncommitted snapshot) like Jeff Atwood did with StackOverflow.

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  • Why do we use HTTP and not remote invocations?

    - by BrokenClockwork
    Hey, first of all this is a conceptional question and I do not know if StackOverflow is the appropriate place - so my apologies if I am wrong. Nowadays the web is not only used for passing raw informations. Many and especially complex web applications are in use. These web application seem to be so complex that it seems irrational to use the HTTP protocol, which is based on so simple data exchange, plus it is stateless. Would it not be more convincing to use remote invocations for this web applications? The big advantage to my mind is a unified GUI by using HTML. But there are applications, which have no need for a graphical interfaces and then it comes to a point where the HTTP protocol is really cumbersome.

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  • What would you like to see in an beginner's ASP.NET security book

    - by blowdart
    This is a shameless information gathering exercise for my own book. One of the talks I give in the community is an introduction to web site vulnerabilities. Usually during the talk I can see at least two members of the audience go very pale; and this is basic stuff, Cross Site Scripting, SQL Injection, Information Leakage, Cross Site Form Requests and so on. So, if you can think back to being one, as a beginning web developer (be it ASP.NET or not) what do you feel would be useful information about web security and how to develop securely? I will already be covering the OWASP Top Ten (And yes this means stackoverflow will be in the acknowledgements list if someone comes up with something I haven't thought of yet!) It's all done now, and published, thank you all for your responses

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  • Detecting if Excel file has been closed

    - by Charlie
    Hi StackOverflow, I've spent the past 3 hours trawling the web for answers to no avail, so I hope you can help me. I'm writing an application which automates Excel. The application has an option to "show/hide the excel sheet" so you can look at it, make any final changes and so forth. Closing the application will naturally close the instance of Excel, however, there is a small chance that someone may exit out of Excel directly, without thinking. This breaks my application and I can't seem to find anyway of "checking if the same workbook is still open, and if not, re-opening it", before saving it I've tried all sorts of things: checking if the Excel Application is null (when it's !=null it will save correctly, but when it "is" null (or at least, something other than !=null it won't even hit the breakpoint so I'm completely lost :( Help please?

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  • How to Look Up Email by Full Name in Active Directory?

    - by Danny
    I want to search for a user's email by using Active Directory. Available is the user's full name (ex. "John Doe" for the email with an email "[email protected]"). From what I've searched, this comes close to what I'm looking to do -- except that the Filter is set to "SAMAccountName", which is not what I have. Unless I'm misunderstanding, I just need to pick the right attribute and toss in the full name name in the same way. Unfortunately, I don't know what this attribute is, apparently no one has had to ask about searching for information in this manner, and that is a pretty big list (msdn * microsoft * com/en-us/library/ms675090(v=VS.85) * aspx, stackoverflow didn't let me link 2 hyperlinks because I don't have 10 rep) of attributes. Does anyone know how to obtain the user's email address through an Active Directory lookup by using the user's full name?

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  • How to work with XAML editor in Visual Studio 2010?

    - by MartyIX
    I've worked with Visual Studio 2008 and editing XAML was really painful because the designer reloaded very slowly. Now I have installed Visual Studio 2010 and it seems to me that the XAML editor + Designer haven't changed much. For example in order to force designer to change a color in my control I have to close the xaml file and open it again. Is it just my problem? I've tried this solution: http://stackoverflow.com/questions/859335/visual-studio-2008-xaml-editor-not-working-disappeared but it didn't help. Are there any better tools for Visual Studio to edit XAML? Thanks!

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  • Advice needed: What tech expertise do I need to accomplish my goal?

    - by quaternion
    I have a business plan & money to hire a developer - the essentials involve simple online games for children (played via traditional computer over the internet) such that their scores are uploaded to a database that can be viewed via a nice portal. What I don't know is: what technologies I would want my developer to know (the only somewhat unusual requirement I have is that the games have relatively accurate timing of keypresses/mouse presses) how much I should expect to pay (in general, what is the appropriate range) how many hours a program of the complexity of a simple tower defense -type game should take to develop (to be clear, the idea is not to implement TD, but rather other games of similar complexity) whether I should go with capable acquaintances, some online kind of online web-dev bidding site, or just try to find a capable undergraduate at the local university who I can wow with his/her first big paycheck, how I should communicate the software's specifications to my hired developer... Is there a standard I should be using? whether I should hire a webdev consultant for a few hours to help me answer these questions, instead of asking stackoverflow Thanks for any advice!

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  • Which places I could question about TFS, Visual Studio and ALM?

    - by afsharm
    Hi all, We are going to applying VSTS 2010 in our company. This includes Visual Studio, TFS, TFS Build and ALM. It's predictable that we would encounter a wave of new questions about their usage. But the problem is I don't know which places we could do questioning. StackOverflow is programming base question site and ServerFault is not very active. How do you think about? Which places and their advantages and disadvantages? afsharm

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  • NSNumberFormatter and 'th' 'st' 'nd' 'rd' (ordinal) number endings

    - by jan
    Is there a way to use NSNumberFormatter to get the 'th' 'st' 'nd' 'rd' number endings? EDIT: Looks like it does not exist. Here's what I'm using. +(NSString*)ordinalNumberFormat:(NSInteger)num{ NSString *ending; int ones = num % 10; int tens = floor(num / 10); tens = tens % 10; if(tens == 1){ ending = @"th"; }else { switch (ones) { case 1: ending = @"st"; break; case 2: ending = @"nd"; break; case 3: ending = @"rd"; break; default: ending = @"th"; break; } } return [NSString stringWithFormat:@"%d%@", num, ending]; } Adapted from nickf's answer here http://stackoverflow.com/questions/69262/is-there-an-easy-way-in-net-to-get-st-nd-rd-and-th-endings-for-numbers

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  • VB.NET 2.0 - StackOverflowException when using Thread Safe calls to Windows Forms Controls

    - by LamdaComplex
    I have a Windows Forms app that, unfortunately, must make calls to controls from a second thread. I've been using the thread-safe pattern described on the http://msdn.microsoft.com/en-us/library/ms171728.aspx. Which has worked great in the past. The specific problem I am having now: I have a WebBrowser control and I'm attempting to invoke the WebBrowser.Navigate() method using this Thread-Safe pattern and as a result I am getting StackOverflow exceptions. Here is the Thread-Safe Navigate method I've written. Private Delegate Sub NavigateControlCallback(ByRef wb As WebBrowser, ByVal url As String) Private Sub AsyncNavigate(ByRef wb As WebBrowser, ByVal URL As String) Try If wb.InvokeRequired Then Dim callback As New NavigateControlCallback(AddressOf AsyncNavigate) callback(wb, url) Else wb.Navigate(url) End If Catch ex As Exception End Try End Sub Is there a Thread-Safe way to interact with WinForms components without the side effect of these StackOverflowExceptions?

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  • How to select a dynamic datepicker instance in order to extend it with jQuery

    - by JaredC
    I'm trying to control positioning of a jQuery datepicker element. I like the solution offered at http://stackoverflow.com/questions/1818670/how-to-control-positioning-of-jqueryui-datepicker for overriding the _checkOffset fn: $.extend(window.DP_jQuery.datepicker,{_checkOffset:function(inst,offset,isFixed){return offset}}); However, this results in a 'window.DP_jQuery is undefined' error. Upon inspection, I can see that the DP_jQuery object in the DOM gets named with a random string, like so: DP_jQuery_123456. If I use this full name in the above code, it works wonderfully. My question is whether there's a way to exend the _checkOffset fn for a datepicker instance without knowing before-hand what the instance name is? For example, can I use some sort of wildcard to select all datepicker instances that begin with 'DP_jQuery_'? Thanks

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  • How popular is C++ for making websites/web applications?

    - by Vilx-
    I don't know why this is question is bugging me, but time after time I come back to the though - why not make websites in C++? So far I know of none (except a rumor about Yahoo). Most use PHP, Java or ASP.NET. Some are built on Ruby or Python, but even those are minorities. At the same time, looking at StackOverflow, it seems that C++ is still a very popular language with many projects written in it. Why not for webpages? So - what do you know about this subject? Are there any websites written in C++? Are there any framewroks/libraries that help doing this? Have YOU ever done it? If yes, did you run into any fundamental problems and would you recommend this to others?

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