warp | 易学教程

warp

Warp \\ bend effect on a UIView?

阅读更多关于 Warp \\ bend effect on a UIView?

I'm trying to get a similar effect to the one described in the pictures. The white area on the left isn't on the original photo, it pushes the pixels away. I've tried using Core Image (which offered a few close effects to this) but it was too slow for my needs. I need the effect to be snappy so I can make it responsive to touch. Is there a close effect \ animation in the iOS sdk that does something similar to this with a UIVIew? ( I couldn't find anything close) If not, can someone offer how to attack this using OpenGL? (code examples are more than welcome) (This effect will take an important

Android OpenCV getPerspectiveTransform and warpPerspective

阅读更多关于 Android OpenCV getPerspectiveTransform and warpPerspective

问题 I am a bit confused with the parameters of getPerspectiveTransform as I cannot see a proper image. Here is my code. The original_image variable is the image that contains a square object (and some others) that I want to crop and create a new image (something like this Android OpenCV Find Largest Square or Rectangle). The variables p1, p2, p3, and p4 are the coordinates of the corners of the largest square/rectangle in the image. p1 is the upper left, p2 is the upper right, p3 is the lower

订阅 warp