xcode ios获取相机输入
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ios get camera input
提问by w00
I'm working on an iPhone app right now and i would like to do the following:
我现在正在开发 iPhone 应用程序，我想执行以下操作：
I want to start the camera by code and after that receive the images the camera sees. Then i would like to manipulate these images and push them back to the screen.
我想通过代码启动相机，然后接收相机看到的图像。然后我想操纵这些图像并将它们推回屏幕。
So for example; i'd like to grayscale every image the camera captures and display that instead as if the camera is seeing everything in grayscale.
例如；我想对相机捕获的每张图像进行灰度处理并显示出来，就好像相机以灰度显示所有内容一样。
But i have a few questions about this.
但我对此有几个问题。
- What is the best way to start the camera?
- How to receive the images the camera sees and how to push them back to the view?
- And lastly, how can i manipulate the images? Does iOS have a GD library (like PHP has) or anything like that??
- 启动相机的最佳方式是什么？
- 如何接收相机看到的图像以及如何将它们推回视图？
- 最后，我如何处理图像？iOS 是否有 GD 库（如 PHP）或类似的东西？
Please note that i don't want to start recording a video or take a photo. I just want the data of the camera, so i can manipulate the images it sees.
请注意，我不想开始录制视频或拍照。我只想要相机的数据，所以我可以操纵它看到的图像。
I hope someone can point me in the right direction.
我希望有人能指出我正确的方向。
回答by LeGom
You should check that : http://www.benjaminloulier.com/articles/ios4-and-direct-access-to-the-camera
你应该检查一下：http: //www.benjaminloulier.com/articles/ios4-and-direct-access-to-the-camera
Everything you want to do is related to AVCaptureSession
你想做的一切都与 AVCaptureSession 有关
