kgjenkins

TIFF compression options

Summary

Realistically, especially when considering the inherent noise in the original image, I'd settle for lossy compression with COMPRESS=JPEG JPEG_QUALITY=90, which could reduce file size fairly quickly to 16% of the original.

But if lossless compression is a hard requirement, I'd probably go with COMPRESS=LZW PREDICTOR=2. However, I would want to verify that any downstream tools would support this sort of compression.

UPDATE: When saving with JPEG compression, further speed and size improvements are gained by adding PHOTOMETRIC=YCBCR, which uses a different color space that has even better compression. I've added new rows to the table for YCBCR, as well as .jp2 formats.

jb221467

"""
Thumbnails & metadata to Excel

Writes images, filenames, and identifiers to an excel file.
JPEGs should be no more than 150 pixels on the long edge.
Input file is a CSV with columns for 'Filename' and 'Identifier'
where 'Filename' values match actual filenames.

Last edited 2/2/2018 by Jasmine Burns, [email protected]"""

bitsgalore

#! /usr/bin/env python
"""Script that demonstrates custom DFXML reports in IsoBuster"""

import os
import subprocess as sub

def launchSubProcess(args):
    """Launch subprocess and return exit code, stdout and stderr"""
    try:
        # Execute command line; stdout + stderr redirected to objects

JonathanThorpe

import struct
import io

class WAVFile:

  def __init__(self, filename):
    self.filename = filename

  def read(self):
    with io.open(self.filename, 'rb') as fh:

whophil

import os
import fnmatch

def recursive_glob(rootdir='.', pattern='*'):
	"""Search recursively for files matching a specified pattern.
	
	Adapted from http://stackoverflow.com/questions/2186525/use-a-glob-to-find-files-recursively-in-python
	"""

	matches = []

oswaldoacauan

#!/bin/sh
for i in ./*.swf ; do
   for j in `swfextract $i | grep -E PNGs.* -o | grep -E [0-9]+ -o` ; do
       echo "$i -> extract png $j";
       swfextract -p "$j" "$i" -o "$i"_"$j".png
   done
   for j in `swfextract $i | grep -E JPEGs.* -o | grep -E [0-9]+ -o` ; do
       echo "$i -> extract jpeg $j";
       swfextract -j "$j" "$i" -o "$i"_"$j".jpg
   done