c# resize image keep aspect ratio
using System.Drawing;
public static Size ResizeKeepAspect(this Size src, int maxWidth, int maxHeight, bool enlarge = false)
{
maxWidth = enlarge ? maxWidth : Math.Min(maxWidth, src.Width);
maxHeight = enlarge ? maxHeight : Math.Min(maxHeight, src.Height);
decimal rnd = Math.Min(maxWidth / (decimal)src.Width, maxHeight / (decimal)src.Height);
return new Size((int)Math.Round(src.Width * rnd), (int)Math.Round(src.Height * rnd));
}keep aspect ratio of image css
img {
display: block;
max-width: 100%;
max-height: 100%;
width: auto;
height: auto;
}python resize image keep aspect ratio
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_width
resize_height = round(resize_width * im_ratio)
else:
# Fixed by height
resize_height = target_height
resize_width = round(resize_height / im_ratio)
image_resize = im.resize((resize_width, resize_height), Image.ANTIALIAS)
background = Image.new('RGBA', (target_width, target_height), (255, 255, 255, 255))
offset = (round((target_width - resize_width) / 2), round((target_height - resize_height) / 2))
background.paste(image_resize, offset)
return background.convert('RGB')Copyright © 2021 Codeinu
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