[英]odd image using cv2 and numpy
I am running the following code: 我正在运行以下代码:
import cv2
import numpy
f = open("raw_image",'rb')
raw_image = f.read(720 * 1280 * 3)
image = numpy.fromstring(raw_image, dtype='uint8')
image = image.reshape((720, 1280, 3))
cv2.imshow('Image', image)
cv2.waitKey(0)
cv2.destroyAllWindows()
cv2.waitKey(1)
and I get this result: 我得到这个结果:
the image is RGB image with height of 720p and width of 1280. Any Ideas how to solve it?
该图像是高度为720p,宽度为1280的RGB图像。有什么想法如何解决?
EDIT : I receive images from a camera with resolution of 720x1280. 编辑 :我从分辨率为720x1280的相机接收图像。 The image is a colored image.
该图像是彩色图像。 The file
raw_image
, which I read the bytes from, contains the output from the command: 我从中读取字节的文件
raw_image
包含命令的输出:
gst-launch-1.0 fdsrc ! h264parse ! avdec_h264 ! filesink location=/dev/stdout
As you can see, the received image is malformed, and I dont know how to fix it. 如您所见,收到的图像格式错误,我不知道如何解决。
EDIT2: this is the raw image: https://drive.google.com/file/d/1hPRUEVNFiKmiUFbzksUlzzC04teml4hw/view?usp=sharing EDIT2:这是原始图像: https : //drive.google.com/file/d/1hPRUEVNFiKmiUFbzksUlzzC04teml4hw/view?usp=sharing
EDIT3: after running the code (NOTE: I am displaying only the first 720*1280 bytes): EDIT3:运行代码后(注意:我仅显示前720 * 1280字节):
raw_image = f.read(720 * 1280 * 3)
raw_image=raw_image[:720 * 1280]
image=numpy.frombuffer(raw_image,dtype='uint8')
image = image.reshape((720,1280))
cv2.imshow('Image', image)
cv2.waitKey(0)
cv2.destroyAllWindows()
cv2.waitKey(1)
I got this result: 我得到了这个结果:
When I move some of the left part to the right, by adding the line:
当我向左移动一些左侧部分时,添加以下行:
image=numpy.concatenate((image[:,141:],image[:,:141]),axis=1)
I got a fine image: 我有一个很好的形象:
can it help solving the mystery? 它可以帮助解决这个难题吗?
If you generate a Red-Blue gradient like this with ImageMagick in the Terminal, you will see that your code works fine: 如果您在终端中使用ImageMagick生成像这样的红蓝色渐变,您将看到代码可以正常工作:
convert -size 1280x720 gradient:red-blue -depth 8 rgb:raw_image
I deduce your gst
stuff is "unhappy" . 我推断您的
gst
“不高兴” 。
The image you have shared contains this: 您共享的图像包含以下内容:
I converted it to a JPEG using ImageMagick like the in the Terminal: 我使用终端中的ImageMagick将其转换为JPEG:
convert -size 1280x720 -depth 8 rgb:raw_image.dms result.jpg
I deduce again that your gst
stuff is "unhappy" . 我再次推断出你的
gst
的东西是“不高兴”。
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