龙岗网站设计机构,做电影网站要怎么拿到版权,往建设厅网站上传东西,网站建设计划书下载最近在写论文的实验部分#xff0c;由于latex需要pdf格式的文档#xff0c;审稿专家需要对pdf图片进行裁剪放大#xff0c;以保证图片质量。
原图#xff1a;
裁剪后的图像#xff1a; 代码粘贴如下。将input_folder和output_folder替换即可。(x1, y1)#xff0c; (x2…最近在写论文的实验部分由于latex需要pdf格式的文档审稿专家需要对pdf图片进行裁剪放大以保证图片质量。
原图
裁剪后的图像 代码粘贴如下。将input_folder和output_folder替换即可。(x1, y1) (x2, y2) 分别代表裁剪框的像素位置。
import os
import PyPDF2
from PIL import Imagedef crop_and_save_pdf(input_folder, output_folder, x1, y1, x2, y2):# Ensure output folder existsif not os.path.exists(output_folder):os.makedirs(output_folder)# Process each PDF file in the input folderfor filename in os.listdir(input_folder):if filename.endswith(.pdf):input_pdf_path os.path.join(input_folder, filename)output_png_path os.path.join(output_folder, os.path.splitext(filename)[0] .png)output_pdf_path os.path.join(output_folder, os.path.splitext(filename)[0] .pdf)with open(input_pdf_path, rb) as file:pdf_reader PyPDF2.PdfReader(file)pdf_writer PyPDF2.PdfWriter()for page_num in range(len(pdf_reader.pages)):page pdf_reader.pages[page_num]page.cropbox.lower_left (x1, y1)page.cropbox.upper_right (x2, y2)pdf_writer.add_page(page)with open(output_pdf_path, wb) as output_file:pdf_writer.write(output_file)# Convert the first page to PNG format for visualization# first_page Image.open(output_pdf_path)# first_page.save(output_png_path, PNG)# Specify input and output folders, and crop coordinates
input_folder /home/lxy/data_link2/evaluate/clip/HU_Compare
output_folder /home/lxy/data_link2/evaluate/clip/HU_Compare2
x1, y1 50, 400 # Left bottom coordinates
x2, y2 130, 550 # Right top coordinates# Call the function to crop and save PDF pages as PNG
crop_and_save_pdf(input_folder, output_folder, x1, y1, x2, y2)
