2014/10/15 下午 10:12:28
iphone Programming Glossary: paperadjust corners and crop the image openCV http://stackoverflow.com/questions/13098073/adjust-corners-and-crop-the-image-opencv corners and crop the image openCV I am using open CV in IOS. I already detected the boundary of the paper sheet in an Image as show in image and Now I have to drag these boundary line on touch for adjusting the crop frame. how.. cv Point biggestContour contours contours.size 1 NSLog @ d biggestContour 0 .x NSLog @ d biggestContour 0 .y cv Mat paperImage self getPaperAreaFromImage image biggestContour return crop return paperImage Thanks All iphone objective c ios image.. .x NSLog @ d biggestContour 0 .y cv Mat paperImage self getPaperAreaFromImage image biggestContour return crop return paperImage Thanks All iphone objective c ios image processing opencv share improve this question After you got the corners..
Boundry detect paper sheet opencv http://stackoverflow.com/questions/13493035/boundry-detect-paper-sheet-opencv detect paper sheet opencv I am new in openCV I already detect edge of paper sheet but my result image is blurred after draw lines on.. detect paper sheet opencv I am new in openCV I already detect edge of paper sheet but my result image is blurred after draw lines on edge How I can draw lines on edges of paper sheet so my image quality.. detect edge of paper sheet but my result image is blurred after draw lines on edge How I can draw lines on edges of paper sheet so my image quality remain unaffected. what I am Missing.. My code is below. Many thanks. void forOpenCV if imageView.image..
OpenGL ES iPhone - drawing anti aliased lines http://stackoverflow.com/questions/1813035/opengl-es-iphone-drawing-anti-aliased-lines very cheaply using vertices with opacity 0. Here's an image example to explain Comparison with AA You can read a paper about this here http research.microsoft.com en us um people hoppe overdraw.pdf You could do something along this way Colors..
http://stackoverflow.com/questions/2646714/what-iphone-os-apis-could-i-use-to-implement-a-transition-animation-similar-to-t a transition animation similar to the iBook page flip transition I'm building an iPad app that will have multiple paper pages and I'd like to implement a page transition affect that is similar to the animation you see when you turn pages in..
How to change wallpaper in iPad programmatically? http://stackoverflow.com/questions/2649529/how-to-change-wallpaper-in-ipad-programmatically to change wallpaper in iPad programmatically How to change wallpaper in iPad programmatically iphone ipad share improve this question .. to change wallpaper in iPad programmatically How to change wallpaper in iPad programmatically iphone ipad share improve this question You can't do this. The user decides what wall paper.. in iPad programmatically iphone ipad share improve this question You can't do this. The user decides what wall paper s he wants and has one single place to change it. You can however add new items to the user's saved photos list which they..
iphone accelerometer speed and distance http://stackoverflow.com/questions/3177199/iphone-accelerometer-speed-and-distance You can use the acceleration values from the accelerometer to measure the velocity and distance. There is really good paper Implementing Positioning Algorithms Using Accelerometers which explains the errors you get from the accelerometer and the..
http://stackoverflow.com/questions/3841642/curve-text-on-existing-circle iphone cocoa touch math quartz graphics quartz 2d share improve this question I tried to work it out quickly on paper so i may be wrong Convert the length of the string into units on the UnitCircle . Thus string.lenght circle perimeter 2Pi...
Find a point, a given distance, along a simple cubic bezier curve. (On an iPhone!) http://stackoverflow.com/questions/4058979/find-a-point-a-given-distance-along-a-simple-cubic-bezier-curve-on-an-iphone share improve this question There's some simple math behind calculating the positions you can read about it in every paper discussing B矇zier curves even on wikipedia. Anyway I can relate to everybody who's in trouble to actually implement it in..
Measuring time the vehicle takes to accelerate in iPhone http://stackoverflow.com/questions/4654864/measuring-time-the-vehicle-takes-to-accelerate-in-iphone question You can use the acceleration values from the accelerometer to measure the velocity. There is really good paper Implementing Positioning Algorithms Using Accelerometers which explains the errors you get from the accelerometer and the..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices applications overlapping the solution described by Chris. For an in depth theoretical discussion of syncing see the paper from Russ Cox MIT and William Josephson Princeton File Synchronization with Vector Time Pairs which applies equally well..
Change name of iPhone app in Xcode 4 http://stackoverflow.com/questions/5043066/change-name-of-iphone-app-in-xcode-4 button in the View toolbar towards the upper right corner. 4.In the Inspector pane click the little folded corner paper file properties icon. 5.First thing is Project Name. Type in a new one you will be prompted to rename project content files...
Learning iPhone SDK (Objective-C) [closed] http://stackoverflow.com/questions/5656626/learning-iphone-sdk-objective-c take a class or get a tutor. ANYTHING SO I CAN LEARN THIS LANGUAGE. I've got great app ideas but can't lay 'em out on paper. I currently am attending school and I cant really take any classes now but I'm looking forward to some I still haven't..
http://stackoverflow.com/questions/6210065/in-app-purchase 1 According to my understanding everything which is not consumed within the application like ordering of e.g. paper books food delivery flight tickets electronics cannot be done via the In App Purchase mechanism. Everything which is consumed..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare second array is similar to the newly measured and the first is not. Let's compute the cost matrices according to this paper subsection 2.1 D i j Dist i j MIN D i 1 j D i j 1 D i 1 j 1 Here D i j is the i j element of the cost matrix see below... i j MIN D i 1 j D i j 1 D i 1 j 1 Here D i j is the i j element of the cost matrix see below. Check Figure 3 of that paper to see this recurrence relation is applied. In short columns are computed first starting from D 1 1 D 0 and D 0 are left.. a real world application. For example using offset instead of fixed ending points or defining measures of fit see this paper page 363 5. boundary conditions and page 364. The above linked paper has further details too. I just noticed you are using..
GUI Design Tools to mock up iPhone & Android applications [closed] http://stackoverflow.com/questions/929875/gui-design-tools-to-mock-up-iphone-android-applications have most of the GUI mock ups white boarded with some still in my head . As a next step I need to put them all down on paper so that I can start socializing the designs among my team and I'm wondering what the best online GUI mock up tool is that's..
iOS Paper fold (origami / accordion) effect animation, with manual control http://stackoverflow.com/questions/11157888/ios-paper-fold-origami-accordion-effect-animation-with-manual-control Paper fold origami accordion effect animation with manual control I'm looking for tips on how to implement the popular 'paper..
Why my array instance is out of scope? http://stackoverflow.com/questions/4177662/why-my-array-instance-is-out-of-scope my array instance is out of scope Could some one tell me why my array is out of scope Here's my class Paper.h @interface Paper NSObject NSMutableArray items @property retain NSMutableArray items Paper.m #import Paper.h @implementation.. array instance is out of scope Could some one tell me why my array is out of scope Here's my class Paper.h @interface Paper NSObject NSMutableArray items @property retain NSMutableArray items Paper.m #import Paper.h @implementation Paper @synthesize.. of scope Here's my class Paper.h @interface Paper NSObject NSMutableArray items @property retain NSMutableArray items Paper.m #import Paper.h @implementation Paper @synthesize items ParserUtil.m @implementation ParserUtil Paper parsePaper NSString..
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