Python 3.x 转换图像时出现OpenCV错误
我正在尝试使用matplotlib导入大小为(540960)的图片。 此步骤已成功执行。结果存储在“图像”对象(ndarray类型)中Python 3.x 转换图像时出现OpenCV错误,python-3.x,opencv,Python 3.x,Opencv,我正在尝试使用matplotlib导入大小为(540960)的图片。 此步骤已成功执行。结果存储在“图像”对象(ndarray类型)中 import numpy as np import matplotlib.pyplot as plt import cv2 %matplotlib inline #reading the image image = cv2.imread('cat.jpg') image = cv2.cvtColor(image,cv2.C
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
但是当我尝试使用cv2.cvtColor()将图像转换为另一个颜色空间(灰色)时。我面临一个错误:
error: C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:11111: error: (-215) scn == 3 || scn == 4 in function cv::cvtColor
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
请帮忙。奇怪的是,这段代码在另一个citrix环境中成功运行。我尝试了plt.imshow。图像已成功加载。它以RGB比例显示
image = mpimg.imread(r'C:\Temp\pic24_bw.jpg')
plt.imshow(image,cmap='gray')
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
这个代码对我有用,通过cv2本身加载/读取你的图像,请重新检查你的图像路径,因为这是我们最常见的错误
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
希望这对您有所帮助。当图像无法加载或通道数不正确(cv2.COLOR\u BGR2GRAY需要具有3或4个通道的图像)时,会显示此错误消息
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
cv2.imread()
而不是mpimg.imread()
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
您还可以尝试使用以下工具查看图像:
import numpy as np
import matplotlib.pyplot as plt
import cv2
%matplotlib inline
#reading the image
image = cv2.imread('cat.jpg')
image = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)
#plotting the image
plt.imshow(image)
cv2.imshow("Test", image)
cv2.waitKey()
检查<代码>打印(类型(图像));打印(image.dtype,image.shape)plt可能使用opencv以外的另一个频道订购?您是否尝试了cv2.imread来加载图像?