yuv

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a TV capture card that has a feed coming in as a YUV format. I've seen other posts here similar to this question and attempted to try every possible method stated, but neither of them provided a clear image. At the moment the best results were with the OpenCV cvCvtColor(scr, dst, CV_YUV2BGR) function call. I am currently unaware of the YUV format and to be honest confuses me a little bit as it looks like it stores 4 channels, but is only 3? I have included an image from the capture card to hope that someone can understand

Closed. This question is off-topic. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it's on-topic for Stack Overflow. I need a raw YUV file for research purposes. Neither the size nor the content is critical. Any ideas on where such files exist? Richard You can find all kinds of YUV files with different formats: here . You can use ffmpeg to convert any other video type to raw YUV. Your source could be from a DVD home movie, for instance, or perhaps a digital video camera. HI try this link http://trace.eas.asu.edu/yuv/ I also have some

I am trying to convert an RGB frame, which is taken from OpenGL glReadPixels(), to a YUV frame, and write the YUV frame to a file (.yuv). Later on I would like to write it to a named_pipe as an input for FFMPEG, but as for now I just want to write it to a file and view the image result using a YUV Image Viewer. So just disregard the "writing to pipe" for now. After running my code, I encountered the following errors: The number of frames shown in the YUV Image Viewer software is always 1/3 of the number of frames I declared in my program. When I declare fps as 10, I could only view 3 frames.

In my project I use OpenH264 codec, which is said to output data in the YUV 4:2:0 planar format. After decoding I get one array with width * height * 1.5 elements, which, when displaying, looks like this image: http://o3d.googlecode.com/svn/trunk/samples_webgl/assets/shaving_cream.png Why there are four areas below the main one (which contains Y - responsible for grayscale - elements ), instead of two, like on my second picture? Is that mean that the format is different or am I wrong and my world just collapsed? I thought that the resoult should have looked like this: It is exactly the way you

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I do not have a background in imaging or graphics, so please bear with me :) I am using JavaCV in one of my projects. In the examples , a Frame is constructed which has a buffer of a certain size . When using the public void onPreviewFrame(byte[] data, Camera camera) function in Android, copying this data byte array is no problem if you declare the Frame as new Frame(frameWidth, frameHeight, Frame.DEPTH_UBYTE, 2); where frameWidth and frameHeight are declared as Camera.Size previewSize = cameraParam.getPreviewSize(); int frameWidth =

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am writing an app that takes the camera feed, converts it to rgb, in order to do some processing. It works fine on the old camera implementation which uses NV21 Yuv format. The issue I am having is with the new Yuv format, YUV_420_888. The image is no longer converted correctly to RGB in the new Camera2 Api which sends YUV_420_888 yuv format instead of NV21 (YUV_420_SP) format. Can someone please tell me how should I convert YUV_420_888 to RGB? Thanks 回答1: In my approach I use OpenCV Mat and script from https://gist.github.com