image-resizing

问题 I wanted to know if it was possible to resize the image dynamically(maintaining its aspect ratio). I made an image viewer app, but then the vertically long images overflow the screen, so i wanted to know a method to resize image, ive tried a way and its included below. But still im getting the same output that overflows the screen. from win32api import GetSystemMetrics from tkinter import * screen_width, screen_height = GetSystemMetrics(0), GetSystemMetrics(1) root = Tk() # this is your

问题 I want to resize 3D images with a dynamic shape, for instance go from shape (64,64,64,1) to (128,128,128,1). The idea is to unstack the image along one axis, then use tf.image.resize_images and stack them again. My issue is that tf.unstack can not handle variable sized inputs. If I run my code I obtain "ValueError: Cannot infer num from shape (?, ?, ?, 1)" I have considered using tf.split instead, however it expects an integer input. Does anybody know a workaround? Here is an example: import

问题 I want to resize 3D images with a dynamic shape, for instance go from shape (64,64,64,1) to (128,128,128,1). The idea is to unstack the image along one axis, then use tf.image.resize_images and stack them again. My issue is that tf.unstack can not handle variable sized inputs. If I run my code I obtain "ValueError: Cannot infer num from shape (?, ?, ?, 1)" I have considered using tf.split instead, however it expects an integer input. Does anybody know a workaround? Here is an example: import

问题 I am tring to get image from url and then to resize on fly without saving var request = require('request'); request .get('s3url') .on('response', function (response) { console.log(response) // 200 console.log(response.headers['content-type']) // 'image/png' }) .pipe(res) I can now return same picture with request lib but how can I manipulate it and then return as response? 回答1: There are several npm modules that do resizing one example is sharp. You can use it in this way (example taken from

问题 I am tring to get image from url and then to resize on fly without saving var request = require('request'); request .get('s3url') .on('response', function (response) { console.log(response) // 200 console.log(response.headers['content-type']) // 'image/png' }) .pipe(res) I can now return same picture with request lib but how can I manipulate it and then return as response? 回答1: There are several npm modules that do resizing one example is sharp. You can use it in this way (example taken from

问题 i have created a function that resizes and crops a picture and then saves the resulting image file. In my development environment it works just great, but on production the resulting image is "grainy". You can see the different quality here http://test.powersport.it/canc2.aspx Here is the code that generates the resized and cropped image // width: width of cropped img - height: height of cropped img System.Drawing.Bitmap thumbnail = new Bitmap(width, height); // image: original System.Drawing

问题 I have a set of images that are output from a code, and I want to be able to remove all of the excess whitespace within the image so that it reduces the image to only the text within the image. This is the pertinent code: from PIL import Image, ImageFont, ImageDraw, ImageChops from docx import Document import textwrap import re doc = Document('Patents.docx') docText = ''.join(paragraph.text for paragraph in doc.paragraphs) def trim(im, color): bg = Image.new(im.mode, im.size, color) diff =

问题 I want to resize image to an exact size by maintaining aspect ratio and filling the empty space with transparency using nodejs. I am able to do it using canvas. But due to some server os issues I can not use canvas. I tried with imageMagick and gm. But couldn't find any option like these. Please show me a way to do this. Thanks in advance. 回答1: In ImageMagick, you can resize and fill to the exact size by convert image -resize WxH -background none -gravity center -extent WxH output Input: Here

问题 I have a tiff image of size 21 X 513 X 513 where (513, 513) is the height and width of the image containing 21 channels. How can I resize this image to 21 X 500 X 375? I am trying to use PILLOW to do so. But can't figure out if I am doing something wrong. >>> from PIL import Image >>> from tifffile import imread >>> img = Image.open('new.tif') >>> img <PIL.TiffImagePlugin.TiffImageFile image mode=F size=513x513 at 0x7FB0C8E5B940> >>> resized_img = img.resize((500, 375), Image.ANTIALIAS) >>>

问题 I have a tiff image of size 21 X 513 X 513 where (513, 513) is the height and width of the image containing 21 channels. How can I resize this image to 21 X 500 X 375? I am trying to use PILLOW to do so. But can't figure out if I am doing something wrong. >>> from PIL import Image >>> from tifffile import imread >>> img = Image.open('new.tif') >>> img <PIL.TiffImagePlugin.TiffImageFile image mode=F size=513x513 at 0x7FB0C8E5B940> >>> resized_img = img.resize((500, 375), Image.ANTIALIAS) >>>