Here's the code to resize an image while keeping its aspect ratio: from PIL import Image def resize_image_keep_aspect_ratio(image_path, output_path, max_size): with Image.open(image_path) as image: width, height = image.size if max_size < width or max_size < height: if width > ...
[Python][转载]比例缩放图片不变形 cv2importnumpy as np def resizeAndPad(img, size,padColor=0): h, w=img.shape[:2]sh, sw=size# interpolation methodifh>shor w>sw:# shrinking imageinterp=cv2.INTER_AREA else:# stretching imageinterp=cv2.INTER_CUBIC# aspect ratio of imageaspect=w / h# ...
7、Opencv库“resize()”函数调整图像的尺寸 当一张图像尺寸不合适时，我们可以通过Opencv库中的“resize()”函数对它进行缩放来调整图像的尺寸。ret, img = cap.read()#按帧读取图像if ret:'''crop the center of the frame and resize to (240, 320) while keeping image ratio. '''# 裁剪框架的中心...
def resize_with_pad(im, target_width, target_height): ''' Resize PIL image keeping ratio and using white background. ''' target_ratio = target_height / target_width im_ratio = im.height / im.width if target_ratio > im_ratio: # It must be fixed by width resize_width = target_wid...
new_height=int(target_width*ratio)return(target_width,new_height)# 打开图像文件image_path="path_to_your_image.jpg"image=Image.open(image_path)# 设置目标宽度target_width=800# 计算新的高度以保持比例new_size=keep_aspect_ratio(image,target_width)# 拉伸图像stretched_image=image.resize(new_size)#...
7、Opencv库“resize()”函数调整图像的尺寸 当一张图像尺寸不合适时,我们可以通过Opencv库中的“resize()”函数对它进行缩放来调整图像的尺寸。 ret, img = cap.read()#按帧读取图像if ret: '''crop the center of the frame and resize to (240, 320) while keeping image ratio. ''' '''# 裁剪框...
resize会依次尝试使用OpenCV、PIL或Scipy进行缩放,都没有安装则无法使用。 newsize可以指定新剪辑的大小,未指定newsize时 width、height可以二选一指定一个,会等比例缩放自动计算另一个的值。 newsize还可以指定一个函数,例如: def getsize(t): if t<2:return (600,800) else:return (0.8-1/t)剪辑小于2秒的...
image_pil = image_pil.resize((int(h / aspect_ratio), w), Image.BICUBIC) image_pil.save(image_path) 开发者ID:Mingtzge,项目名称:2019-CCF-BDCI-OCR-MCZJ-OCR-IdentificationIDElement,代码行数:18,代码来源:util.py 示例6: pixelize_screenshot ...
():img_resized=resize_image(img,max_size)# Keep the same format as the original imageoriginal_extension=os.path.splitext(image_file)[1].lower()output_path=f"{output_folder}/{os.path.splitext(image_file)[0]}-{suffix}{original_extension}"# Save in the original ...
resize() , thumbnail() takes a two-integer tuple argument. However, the values in the tuple represent the maximum x- and y-sizes allowed while also preserving the image’s aspect ratio. Enter the code below into a new cell and run it: ...