img = cv2.imread('example.jpg') 保存图像 if cv2.imwrite(save_path, img): print(f"Image saved to {save_path}") else: print("Failed to save image") 在这个例子中,我们使用os.makedirs()函数创建保存路径,然后再保存图像。 2、图像数据格式不正确 cv2.imwrite()函数需要输入图像数据为numpy数组。...
grey_img = cv2.imread('/home/img/python.png', cv2.IMREAD_GRAYSCALE) # save image status = cv2.imwrite('/home/img/python_grey.png',grey_img) print("Image written to file-system : ",status) Run the above python script. Image written to file-system : True cv2.imwrite() returnedtruew...
imdecode(numpy.fromfile(file_path, dtype=numpy.uint8), -1) # 记得要 import numpy 2.将图片保存到包含中文路径下的方法 # 将下面的这句替换掉 cv2.imwrite(save_path, img) # 可以替换成 cv2.imencode('.jpg', img)[1].tofile(file_path) # 英文或中文路径均适用 Q&A Q:为什么 OpenCV 不支持...
使用cv2.imread(),cv2.imshow(),cv2.imwrite()读取、显示和保存图像 一、读入图像 使用函数cv2.imread(filepath,flags)读入一副图片 filepath:要读入图片的完整路径 flags:读入图片的标志 cv2.IMREAD_COLOR:默认参数,读入一副彩色图片,忽略alpha通道 cv2.IMREAD_GRAYSCALE:读入灰度图片 cv2.IMREAD_UNCHANGED:顾名思...
image = cv2.imdecode(image_array, -1) cv2.imwrite(file_path, image) 使用示例 url = 'http://example.com/image.jpg' file_path = 'opencv_image.jpg' save_image_with_opencv(url, file_path) 四、使用requests库 适用于直接从网络下载图片,并不需要对图片进行处理就保存到本地。
gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) # Apply Gaussian blur to the image blurred_image = cv2.GaussianBlur(image, (5, 5), 0) 步骤7:保存处理后的图像(可选) 使用cv2.imwrite()函数将处理后的图像保存到文件: # Save the processed image to file ...
cv2.imwrite Python:cv2.imwrite(filename, img[, params]) Parameters: filename– Name of the file. image– Image to be saved. params– Format-specific save parameters encoded as pairsparamId_1,paramValue_1,paramId_2,paramValue_2,... The following parameters are currently supported: For...
importnumpyasnpimportcv2 img=cv2.imread('1.jpg',cv2.IMREAD_UNCHANGED)cv2.imshow('image',img)k=cv2.waitKey(0)ifk==ord('s'):# waitfor's'key to save and exit cv2.imwrite('1.png',img)cv2.destroyAllWindows()else:cv2.destroyAllWindows()...
File "C:/Users/RedCode/PycharmProjects/MyApps/WebcamPic.py", line 13, in os.path.join(cv2.imwrite(save, "user.png", image)) TypeError: img is not a numpy array, neither a scalar How can I specify where to store the image when it is taken?
imshow('image',img) k = cv2.waitKey(0) if k == 27: # wait for ESC key to exit cv2.destroyAllWindows() elif k == ord('s'): # wait for 's' key to save and exit cv2.imwrite('messigray.png',img) cv2.destroyAllWindows() imread函数还可以定义加载的mode,默认是以RGB模式处理图片...