以下是一个简单的示例,展示如何使用Python调用Halcon的crop_image算子: importsysfromHalconimport*# 初始化Halcon环境HDevelopExport()# 读取图像defread_image_example(image_path):try:image=HImage(image_path)returnimageexceptExceptionase:print(f"Error reading image:{e}")sys.exit(1)# 剪裁图像defcrop_image...
image.crop是Python中用于裁剪图片的函数。在使用该函数前,我们需要先导入PIL库,即Python Image Library。from PIL import Image # 打开图片 img = Image.open('example.jpg') # 图片的裁剪区域(区域左上角的坐标为(100, 100),右下角的坐标为(300, 300)) crop_area = (100, 100, 300, 300) # 裁剪并...
im = Image.new('RGBA',(200,200),'white') #Image.new函数新建一个图像,参数含义(颜色模式,图像大小(元组表示),背景色) 1. faceim = catlmg2.crop((335,345,565,560)) #crop函数裁切图像并返回一个新的Image对象,矩形元组(左[,上[,右),下)) 1. catlmg2 = catlmg.copy() #copy函数复制图像,...
newcameramtx, roi=cv2.getOptimalNewCameraMatrix(mtx,dist,(w,h),1,(w,h)) # here we can get how the pixels are mapped to the new image mapx,mapy = cv2.initUndistortRectifyMap(mtx,dist,None,newcameramtx,(w,h),5) dst = cv2.remap(img,mapx,mapy,cv2.INTER_LINEAR) 得到剪切后的图像...
所以这个数值需要比upper大。 正确的应该是: #图片裁剪,需要设置边缘间距【left,upper,right,lower】image_5=image.crop(box=(1000,1000,5000,5000)) image_5.show() 如果后面的末端位置超过了原本图片的像素大小,会自动留黑裁剪。具体自行测试查看具体效果。
imageDir)): if idx >= 5000: break path = imageDir + fname img = cv2.imread(path, -1) for i in range(3): width, height = img.shape[:2] cropXmin = random.randint(offset, width - xSize - offset) cropYmin = random.randint(offset, height - ySize - offset) cropXmax = cropX...
crop_ratio=(1, 1), # det_model = args.detection_model, # save_ext='png', # use_parse=True, # device=device ) # --- start to processing --- for i, img_path in enumerate(input_img_list): # # clean all the intermediate results to process the...
Learn how to upload images and videos with only a few lines of Python code - with cloud storage, CDN delivery, image optimization and post-upload image effects.
scikit-image - A Python library for (scientific) image processing. thumbor - A smart imaging service. It enables on-demand crop, re-sizing and flipping of images. wand - Python bindings for MagickWand, C API for ImageMagick. Implementations Implementations of Python. cpython - Default, most ...
合成Image.blend(i1,i2,a)/Image.composite(i1,i2,mask) 缩略图 thumbnail(size,filter=None) Modifies in-place,Preserves aspect ratio >>> myImage.thumbnail ((128, 128), Image.ANTIALIAS) 剪切crop(bbox) >>> bounds = (100, 100, 400, 400) ...