使用16位有符号格式打开CV不工作...裁剪和调整图像大小 [英] Open CV using 16 bit signed format not working... Cropping and re-sizing an image

问题描述

我试图创建一个块，可以接收图像并放大其中的一部分。为了做到这一点我使用OpenCV（我是新的）。

I am attempting to make a block that can take in an image and zoom in on a section of it. In order to do this I am using OpenCV (which i'm new to).

我的问题是，每当我运行使用16位有符号（cv_16sC1）我得到错误OpenCV错误：不支持的格式或格式（）在cvGetRectSubPix，文件/media/virtex4/re/OpenCV-2.4.0/modules/imgproc/src/samplers.cpp，行573。

My issue is that whenever I run the functions using 16 bit signed (cv_16sC1), I get the error OpenCV Error: Unsupported format or combination of formats () in cvGetRectSubPix, file /media/virtex4/re/OpenCV-2.4.0/modules/imgproc/src/samplers.cpp, line 573.

首先，是否有人知道这个函数是否真正工作于位深度？是否有找出方法？

Firstly, does anyone know whether this function does actually work with that bit depth? Is there a way of finding out?

  cv::Mat image_1_in(video_frame->_width, video_frame->_height, CV_16SC1, video_frame->GetPointerToYLine(0));
  cv::Mat image_1_out(video_frame->_width, video_frame->_height, CV_16SC1, video_frame_out->GetPointerToYLine(0));

  cv::Mat temp_image;

  getRectSubPix(image_1_in, cv::Size(100, 200), cv::Point2f(200, 200), temp_image);
  resize(temp_image, image_1_out, Size(video_frame_out->_width, video_frame_out->_height));

这是多次尝试之一，每次都给出相同的错误（直到我将格式更改为CV_32f没有给出错误）...

This is one of many attempts each of which gives the same error (until I changed the format to CV_32f which didn't give the error)...

推荐答案

看起来 getRectSubPix 仅适用于{CV_8U，CV_8U}，{CV_32F，CV_32F}和{CV_8U，CV_32F}的{src，dst}类型。

It seems getRectSubPix only work with {src,dst} type of {CV_8U, CV_8U}, {CV_32F, CV_32F} and {CV_8U, CV_32F}.

我深入的源代码，并计算出来。 API参考中没有指定。

I dip into the source code and figure that out. There's no specification in the API reference.

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