如何在Python中使用OpenCV Stitcher类?

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问题描述

我正在尝试将OpenCV Stitcher类与Python配合使用，但没有运气.我的代码是:

I'm trying to use OpenCV Stitcher class with Python, with no luck. My code is:

import cv2
stitcher = cv2.createStitcher(False)
foo = cv2.imread("foo.png")
bar = cv2.imread("bar.png")
result = stitcher.stitch((foo,bar))

我得到一个带有(1，None)的元组.

I get a tuple with (1, None).

在C ++示例之后，我尝试将numpy数组作为第二个参数传递给itchle()，但是没有运气.

Following the C++ example, I tried to pass a numpy array as a second argument to stitch() with no luck.

推荐答案

您正在正确使用它，因为该过程由于某种原因而失败.

You're using it right, be the process failed for some reason.

结果元组的第一个值是错误代码，0表示成功.在这里，您得到1，根据stitching.hpp，这意味着该过程需要更多图像.

The first value of the result tuple is an error code, with 0 indicating success. Here you got 1, which means, according to stitching.hpp, that the process needs more images.

enum Status
{
    OK = 0,
    ERR_NEED_MORE_IMGS = 1,
    ERR_HOMOGRAPHY_EST_FAIL = 2,
    ERR_CAMERA_PARAMS_ADJUST_FAIL = 3
};

ERR_NEED_MORE_IMGS通常表示图像中没有足够的关键点.

ERR_NEED_MORE_IMGS usually indicates that you don't have enough keypoints in your images.

如果您需要更多有关错误发生原因的详细信息，可以切换到C ++并详细调试过程.

If you need more details about why the error occurs, you could switch to C++ and debug the process in details.

提供工作示例

与OP相同的代码，只是添加了结果保存和绝对路径.

Same code as OP, just added result save and absolute paths.

import cv2

stitcher = cv2.createStitcher(False)
foo = cv2.imread("D:/foo.png")
bar = cv2.imread("D:/bar.png")
result = stitcher.stitch((foo,bar))

cv2.imwrite("D:/result.jpg", result[1])

带有这些图像:(我希望你喜欢熊猫)

with these images: (I hope you love pandas)

foo.png

bar.png

result.jpg

这篇关于如何在Python中使用OpenCV Stitcher类?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！