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Questions tagged [image-extraction]

53 questions
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Extracting images from PDF using pypdfium2 (Python)

I am trying to extract images from a PDF document using this specific library: pypdfium2 (https://pypi.org/project/pypdfium2/). I would love to use PyMuPDF instead (given it's excellent speed and versatility), but because it uses a copy-left license…
americanthinker
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Extract selected area from image

I have image in UIImageView where user can draw specific selection on image and I want to cut or extract specific area from that image with the help of path drawn on image. Source Image: head selected: tail selected: I have follow this Image…
Azhar Tahir
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Identify red colored parts of an image and extract only their intensity - Python

I am trying to analyze the red wells with different intensities from the attached image. I want to analyze how the intensity of each red colored well differs from the others. Does anyone have a solution without using the following code: import numpy…
Andale
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PDFBox: ExtractImages JPEG2000 images not extracting

I am trying to extract all the images in a PDF file using PDFBox. Its working fine for the pdf containing jpeg and png images. But it is not working for OpenJPEG2000 images. I am getting the below exception: Getting the below…
Guna Sekaran
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python extracting date

I need to extract a date from a jpeg format, I have extracted the text from the jpeg in the form of a string & have used regex to extract the date, Text from JPEG Cont:7225811153; BillNo4896TableNoR306 07-Jun-201921:18:40 Code used Importing regular…
Sid
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PdfBox image extraction: the library extracts all the images from document for every page

I have a test PDF file with an image on every page: 4 pages, 4 images. The PDF file was created by converting corresponding Docx file into PDF using Libre Office. And, here is С# a function to extract all the images from the PDF document: public…
Alex
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Java: Checking if image moved

I want to look within a certain position in an image to see if the selected pixels have changed in color, how would I go about doing this? (Im trying to check for movement) I was thinking I could do something like this: public int[]…
J Code
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How to batch extract images from a PDF

TL/DR Version: How do I extract the image out of the Type B file below. Note that there are around 600 such files so I would prefer some sort of batch operation. Type A Type B Details: I'm redesigning my company's online catalog an need top extract…
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Get Visible Signature from a PDF using iText?

Is it possible to extract the visible signature (image of capture) of an signed PDF with itext? Workflow: list all signatures of a file show with signatures include an visible signature show which are valid extract images of signatures (need to…
ctvoigt
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Extract image of UISegmentedControl on iPhone

I am using UISegmentedControl (with only one segment) as a button. But problem with this is one cannot change font size in UISegmentedControl (possible in iOS-5+ but I am targeting lower versions devices). Is it possible to extract image of…
chatur
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indexing area in numpy 2D array, using a 2D array providing the indices

Suppose I have a numpy 2D array and I want to index or extract a region of it using another 2D array which provides the index pairs, similar as in https://stackoverflow.com/a/14999290/17173241:: a = np.arange(36).reshape(6,6) >>> a array([[ 0, 1, …
MSLDStkOFlw
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how to generate frames using ffmpeg `select` filter with custom function

I got a video, and want to generate some frames to be my video cover candidates which should satisfied with some conditions below: frame in vary scenes. frame contain person with good look, no eyes closed and etc. I found ffmpeg select filter…
Ricky
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to classify the extracted text from images into spam or non spam using python

<** extract text from all the images in a folder storing the text in a single file from PIL import Image import pytesseract as pt import pandas as pd from tabulate import tabulate from io import StringIO import os import json import csv def…
Paridhi Kaushik
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Have: Image file with multiple images; Want: to extract, save each image

I have scans from a clip art book; each page was scanned to tiff; each tiff has approximately 18-20 clip art images—how would I automate the selection and extraction of each of these 18-20 images, retain color depth/ppi, and save each clip art image…
Cody
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API to retrieve images from within an image or pdf

I am looking for a way to extract images from within another image. For example: Here is a picture taken of a paper. It includes text, an image of a camera, and an image of a qr code. Is there an API that can possibly extract those two(camera and…
blueberrr
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