mmdetection框架的预处理操作Resize,如果启用了keep_ratio参数,则会将目标尺寸中的长边除以原来的长边,短边除以原来的短边,取两者最小者作为最终的缩放比例,也就是原来的短边缩放为目标尺寸,同时保持宽高比。 他们github上的回答也可以验证:Confusing Resizing in the Pipelines。 (完)...
# 1 单尺度,不保持宽高比dict(type='Resize',img_scale=(511,511),keep_ratio=False)# 2 单尺度,保持宽高比dict(type='Resize',img_scale=(1333,800),keep_ratio=True)# 3 多尺度,range 模式dict(type='Resize',img_scale=[(1333,640),(1333,800)],multiscale_mode='range',keep_ratio=True),# ...
2.计算四个边需要padding的像素宽度,然后padding。 defresize_img_keep_ratio(img_name,target_size):img=cv2.imread(img_name)old_size=img.shape[0:2]#ratio = min(float(target_size)/(old_size))ratio=min(float(target_size[i])/(old_size[i])foriinrange(len(old_size)))new_size=tuple([int...
import cv2 img = cv2.imread('image.jpg') height, width, _ = img.shape if height > width: ratio = height / 200 dim = (int(width / ratio), 200) else: ratio = width / 200 dim = (200, int(height / ratio)) resized_img = cv2.resize(img, dim) cv2.imshow('Resized Image', res...
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 > height: new_width = max_size new_height = int(height / (width / ...
Toresizean imported graphic and keep its original proportions, drag a corner handle. 如果要在改变导入图形的尺寸时保持其原来的比例, 可拖动其角部控点. 期刊摘选 Keep the original aspect ratio orresizemovie to fit the PSP monitor resolution. ...
resize_modeThe way to resize pictures, can be no, border or keep_ratio (defaultborder) nodoesn't resize at all borderwill make the image image_size x image_size and add a border keep_ratiowill keep the ratio and make the smallest side of the picture image_size ...
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...
resize_containresize the image so that it can fit in the specified area, keeping the ratio and without crop (same behavior asbackground-size: contain). resize_heightresize the image to the specified height adjusting width to keep the ratio the same. ...
Use when you’re reducing the size of an image. This method maintains the detail in a resampled image. It may, however, oversharpen some areas of an image. In this case, try using Bicubic. To maintain the current aspect ratio, select Constrain Proportions. This option automatically updates ...