I'm having trouble with positioning a rectangle in an image. Please see attached photos!
I need to determine the position of the rectangle (black) in the image.
Help me write code with OpenCV. I'm trying to rotate the image based on the black rectangle.
Thank you!
P/s: Because of its ability to present my poor english, hope you understood ignored. Thank you!!
This sample image: http://i.upanh.com/rrkcnu
Now I have found a method. The information you see here: http://felix.abecassis.me/2011/10/opencv-bounding-box-skew-angle/
It can rotate images automatically!!!
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i am new to Objective-C. Now i want to get source code to crop image after user draw on image. it would help me lots in my project.
thank you everybody.
try these library from GitHub..
https://github.com/kishikawakatsumi/PEPhotoCropEditor
i hope it helps..
For some reason when I use certain SKSpriteNode textures, they appear as black boxes in the app. For example in my game scene in Xcode I see:
But in the actual app I see:
Does anyone know why this happens, or how to fix it? Any help is greatly appreciated. Thanks!
I found the issue. Even though the picture size after manually changing the size was fine, the original picture size was too big. I fixed the issue by simply resizing the original image.
I am developing an iOS app in which I need to crop image with finger. Like any one take picture and then can crop any part of image with finger. I have searched the Internet but I am getting tools what can crop images into rectangular area. Can anyone please help me to crop image with pan gesture with rough pattern?
Any help will be much appreciated.
There is not straight API from apple to help you do that. You will have to create your own custom mask layer and get the image.graphic context and apply the user created mask to that context your self.
You might want to dig deeper into this thread: ImagePicker Library with custom crop rect?
I found this one solution which mentioned all requirement.
I am trying to add folded effect onto mapview similar to map in this image http://dribbble.com/system/users/11236/screenshots/311711/app-ui.png?1321121645. Tried to google for it but without luck. Any help would be greatly appreciated. Thanks!
My guess is that they are just overlaying an image with the folds/shadows/edges to give the effect. The actual map itself does not look like it is manipulated at all.
I have a triangle with a transparent background (png image) I want its color to change when selecting it.
The point is that the color should change only when touching the non-transparent part of the image.
This should be working when the image is scaled..
Any ideas please?
Thanks...
Since you do not know the exact size/shape of the triangle, you'll need to use Per-Pixel collision detection. The App Hub has a tutorial for that. It even works with scaled/rotated objects.
Hope it helps!