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Rogério Brito rbrito

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@rbrito
rbrito / gist:8e17e6bbc93bc2999d92b979d080c9c3
Created Jul 7, 2020 — forked from bazub/gist:3877971
Grayscale/Binary images using PIL
View gist:8e17e6bbc93bc2999d92b979d080c9c3
im=Image.open("1.jpg")
#im=im.rotate(1)
im.save("e.jpg")
im2=im.convert("L")
im2.save("b.jpg")
threshold = 100
im = im2.point(lambda p: p > threshold and 255)
im.save("d.jpg")
img="d.jpg"
result = tesseract.ProcessPagesWrapper(img,api)
@rbrito
rbrito / mathology.html
Created Mar 30, 2020 — forked from rosinality/mathology.html
Very simple latex sketchpad
View mathology.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Mathology</title>
<style>
body {
font-family: Arial, Helvetica, sans-serif;
}
@rbrito
rbrito / galois.c
Created May 23, 2019 — forked from meagtan/galois.c
Quick implementation of Galois fields
View galois.c
/*
* The following is an implementation of the finite field GF(2^8) as bit vectors of length 8, where the nth bit represents the
* coefficient of the nth power of the generator in each element, and the generator satisfies the minimal polynomial
* x^8 + x^4 + x ^3 + x^2 + 1 in the prime field Z_2, in which addition is equivalent to XOR and multiplication to AND.
* The elements of GF(2^8) thus represent polynomials of degree < 8 in the generator x. Addition in this field is simply
* bitwise XOR, but multiplication requires the elimination of powers of x <= 8.
*/
#include <stdio.h>
#include <stdint.h>
@rbrito
rbrito / gimp-autosave.py
Created Dec 7, 2018 — forked from Iunius118/gimp-autosave.py
Auto save plug-in for GIMP [2.8, 2.9]
View gimp-autosave.py
#!/usr/bin/env python
# Original (by yahvuu): http://www.gimpusers.com/forums/gimp-developer/11718-autosave-plugin
import tempfile, os
from time import *
from gimpfu import *
def autosave(image, layer):
backupInterval = 10 * 60
@rbrito
rbrito / 0.README.md
Created Jul 20, 2018 — forked from agentcooper/0.README.md
Telegram chat backup/export
View 0.README.md

How to use

  1. Login to https://web.telegram.org
  2. Copy-paste contents of telegram-scripts.js into JS console
  3. Run showContacts() to get the list of contacts with ids
  4. Run saveChat(userId) where userId is the id from step 3

Process can take a while, check console for progress. Occasionall FLOOD_WAIT errors are expected. Once done, browser will download the JSON file.

Motivation

@rbrito
rbrito / spectre.c
Created Jan 5, 2018 — forked from ErikAugust/spectre.c
Spectre example code
View spectre.c
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef _MSC_VER
#include <intrin.h> /* for rdtscp and clflush */
#pragma optimize("gt",on)
#else
#include <x86intrin.h> /* for rdtscp and clflush */
#endif
@rbrito
rbrito / remove-duplicate-subs
Created Jun 24, 2017 — forked from otsaloma/remove-duplicate-subs
Remove duplicate subtitles with aeidon
View remove-duplicate-subs
#!/usr/bin/env python3
import aeidon, sys, time
if len(sys.argv) < 2:
print("Usage: {} SUBTITLE_FILE...".format(__file__))
raise SystemExit(1)
for fname in sys.argv[1:]:
print("{}:".format(fname))
project = aeidon.Project()
project.open_main(fname, "utf_8")
before = len(project.subtitles)
@rbrito
rbrito / README.md
Last active Nov 2, 2015 — forked from hubgit/README.md
Remove metadata from a PDF file, using exiftool and qpdf. Note that embedded objects may still contain metadata.
View README.md

Anonymising PDFs

PDF metadata

Metadata in PDF files can be stored in at least two places:

  • the Info Dictionary, a limited set of key/value pairs
  • XMP packets, which contain RDF statements expressed as XML

PDF files

@rbrito
rbrito / gist:59736ed280e569619e84
Created Jun 4, 2015
Output from tox on edx-downloader
View gist:59736ed280e569619e84
$ tox
GLOB sdist-make: /home/rbrito/Desktop/cursos/edx-downloader/setup.py
py27 inst-nodeps: /home/rbrito/Desktop/cursos/edx-downloader/.tox/dist/edx-dl-0.0.zip
py27 runtests: PYTHONHASHSEED='3787261654'
py27 runtests: commands[0] | py.test -v --junitxml=/home/rbrito/Desktop/cursos/edx-downloader/.tox/py27/log/result.xml .
======================================================= test session starts ========================================================
platform linux2 -- Python 2.7.10 -- py-1.4.28 -- pytest-2.7.1 -- /home/rbrito/Desktop/cursos/edx-downloader/.tox/py27/bin/python2.7
rootdir: /home/rbrito/Desktop/cursos/edx-downloader, inifile:
collected 7 items
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