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How to use raw2png method in fMBT
Best Python code snippet using fMBT_python
tileImage.py
Source:tileImage.py 
1#!/usr/bin/python2# -*- coding: utf-8 -*-3###############################################################################4# #5# BrainSlices Software #6# #7# Copyright (C) 2012-2013 Jakub M. Kowalski #8# #9# This software is free software: you can redistribute it and/or modify #10# it under the terms of the GNU General Public License as published by #11# the Free Software Foundation, either version 3 of the License, or #12# (at your option) any later version. #13# #14# This software is distributed in the hope that it will be useful, #15# but WITHOUT ANY WARRANTY; without even the implied warranty of #16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #17# GNU General Public License for more details. #18# #19# You should have received a copy of the GNU General Public License #20# along with this software. If not, see http://www.gnu.org/licenses/. #21# #22###############################################################################23import os24import sys25import math26import json27import subprocess28import tempfile29from optparse import OptionParser30def ensureDirPath(directory):31 if not os.path.exists(directory):32 os.makedirs(directory)33def ensureDir(directory):34 if not os.path.exists(directory):35 os.mkdir(directory)36directoryName = os.path.abspath(os.path.dirname(__file__))37class CorruptedImageError(Exception):38 pass39class imageTiler(object):40 def __init__(self, filename, imageRes, threads = 1, limit = 512*1024*1024):41 self.filename = filename42 self.imageRes = imageRes43 self.invalid = None44 if (threads <= 0):45 raise ValueError("Number of threads must be positive.")46 if (limit < 0):47 raise ValueError("Memory limit must be non negative number.")48 self.threads = threads49 self.limit = limit50 self.tmpfile = tempfile.NamedTemporaryFile(dir='/tmp',51 prefix='SkwarkiTiledImage_',52 suffix='.raw')53 def tileStack(self, destDir, tileWidth, tileHeight, imageLeft = 0., imageTop = 0., jpgQuality = None):54 # identify an image...55 try:56 self.identify()57 except:58 print "ERROR:"59 print self.invalid60 raise61 # ...and rip the RGB data62 # suggested ImageMagick 6.6.9-763 stream = ['stream']64 stream += ['-map', 'rgb']65 stream += ['-storage-type', 'char']66 stream += ['-regard-warnings']67 stream += [self.filename, self.tmpfile.name]68 print ' '.join(stream)69 processStream = subprocess.Popen(stream, stderr = subprocess.PIPE)70 pStdOut, pStdErr = processStream.communicate()71 if processStream.returncode != 0:72 self.invalid = pStdErr73 print pStdErr74 maxZoomLevel = int(math.ceil(math.log(max(float(self.imageWidth) / tileWidth,75 float(self.imageHeight) / tileHeight), 2)))76 ensureDirPath(destDir)77 78 fh = open(os.path.join(destDir, 'info.json'), 'w')79 json.dump({'status': True,80 'logged': False,81 'message': None,82 'data': {'imageWidth': self.imageWidth,83 'imageHeight': self.imageHeight,84 'pixelSize': self.imageRes,85 'imageLeft': imageLeft,86 'imageTop': imageTop,87 'tileWidth': tileWidth,88 'tileHeight': tileHeight}}, fh)89 fh.close()90 91 for zoomLevel in xrange(maxZoomLevel + 1):92 print zoomLevel93 zoomLevelPath = os.path.join(destDir, "tiles", "%d" % zoomLevel)94 scaleFactor = 0.5 ** (maxZoomLevel - zoomLevel)95 self.tile(zoomLevelPath,96 tileWidth,97 tileHeight,98 scaleFactor,99 quality = jpgQuality)100 # create image containing the original bitmap101 raw2png = [os.path.join(directoryName, 'imageProcessing', 'raw2png')]102 raw2png += ['-size', str(self.imageWidth), str(self.imageHeight)]103 raw2png += ['-compression', '9', '-rle']104 raw2png += ['-limit', str(self.limit / 4)] # just for safety105 raw2png += ['-src', self.tmpfile.name]106 raw2png += ['-dst', os.path.join(destDir, 'image.png')]107 process2png = subprocess.Popen(raw2png)108 process2png.wait()109 def identify(self):110 identify = ['identify', '-regard-warnings']111 identify += ['-format', '%w %h']112 identify += [self.filename]113 processIdentify = subprocess.Popen(identify,114 stdout = subprocess.PIPE,115 stderr = subprocess.PIPE)116 pStdOut, pStdErr = processIdentify.communicate()117# if processIdentify.returncode != 0:118# raise CorruptedImageError, pStdErr 119 try:120 self.imageWidth, self.imageHeight = map(int, pStdOut.split())121 except ValueError:122 self.invalid = pStdErr123 if processIdentify.returncode != 0:124 raise CorruptedImageError, pStdErr125 else:126 raise127 except:128 self.invalid = pStdErr129 raise130 131 def tile(self, destDir, tileWidth, tileHeight, scaleFactor = 1, quality = None):132 ensureDirPath(destDir)133 levelWidth = int(round(scaleFactor * self.imageWidth))134 levelHeight = int(round(scaleFactor * self.imageHeight))135 xTiles = int(math.ceil(levelWidth / float(tileWidth)))136 yTiles = int(math.ceil(levelHeight / float(tileHeight)))137 for x in xrange(xTiles):138 columnPath = os.path.join(destDir, '%d' % x)139 ensureDir(columnPath)140 tile = [os.path.join(directoryName, 'imageProcessing', 'tileStreamedImageJPG')]141 tile += ['-size', str(self.imageWidth), str(self.imageHeight)]142 tile += ['-scale', str(levelWidth), str(levelHeight)]143 tile += ['-lanczos' if scaleFactor != 1 else '-box']144 tile += ['-limit', str(self.limit)]145 tile += ['-threads', str(self.threads)]146 tile += ['-tile', str(tileWidth), str(tileHeight)]147 tile += ['-pattern', os.path.join(destDir, '%X/%Y.jpg')]148 tile += ['-src', self.tmpfile.name]149 if quality != None:150 tile += ['-quality', str(quality)]151 print ' '.join(tile)152 processTile = subprocess.Popen(tile)153 processTile.wait()154def tileImage(filename, tileWidth, tileHeight, imageRes, destDir, imageLeft = 0., imageTop = 0., jpgQuality = None):155 tiler = imageTiler(filename, imageRes)156 tiler.tileStack(destDir, tileWidth, tileHeight, imageLeft, imageTop, jpgQuality)157 return tiler.invalid158if __name__ == '__main__':159 usage = "Usage: %prog [options] <filename> <destination>"160 parser = OptionParser(usage=usage)161 parser.add_option('-x', '--width', action='store', type='int', dest='width',162 default=256, help='tile width')163 parser.add_option('-y', '--height', action='store', type='int', dest='height',164 default=256, help='tile height')165 parser.add_option('-X', '--left', action='store', type='float', dest='left',166 default=0., help='left offset [um]')167 parser.add_option('-Y', '--top', action='store', type='float', dest='top',168 default=0., help='top offset [um]')169 parser.add_option('-p', '--pixel', action='store', type='float',170 dest='pixel', default=None, help='pixel size [um]')171 parser.add_option('-r', '--res', '--dpi', action='store', type='float',172 dest='dpi', default=72.,help='image resolution [DPI]')173 parser.add_option('-q', '--quality', action='store', type='int',174 dest='quality', default=None, help='JPG quality')175 parser.add_option('-t', '--threads', action='store', type='int',176 dest='threads', default=1, help='Number of threads')177 parser.add_option('-l', '--limit', action='store', type='int',178 dest='limit', default=512*1024*1024, help='Memory limit')179 options, args = parser.parse_args()180 if len(args) != 2:181 parser.print_help()182 exit()183 if options.threads <= 0:184 sys.stderr.write("Error: number of threads must be positive.\n")185 exit()186 if options.limit < 0:187 sys.stderr.write("Error: memory limit mustn't be negative.\n")188 exit()189 if options.quality != None and (options.quality < 0 or options.quality > 100):190 sys.stderr.write("Error: quality must be within range [0, 100].\n")191 exit()192 if options.height <= 0:193 sys.stderr.write("Error: tile height must be positive.\n")194 exit()195 if options.width <= 0:196 sys.stderr.write("Error: tile width must be positive.\n")197 exit()198 if options.dpi <= 0:199 sys.stderr.write("Error: image resolution must be positive.\n")200 exit()201 if options.pixel != None and options.pixel <= 0:202 sys.stderr.write("Error: pixel size must be positive.\n")203 exit()204 filename = args[0]205 imageRes = options.pixel if options.pixel != None else 25400. / options.dpi206 destDir = args[1]207 sys.exit(tileImage(filename, options.width, options.height, imageRes,...
DSLR.py
Source:DSLR.py
...82 Shutter time in second83 '''84 subprocess.check_call(['gphoto2', '-B', str(shutter), '--capture-image-and-download', '--filename', filename])85 86def raw2png(raw, png):87 '''88 Convert raw image to png image89 Parameters90 ----------91 raw : string92 Raw filename93 png : string94 Output filename95 '''96 command = 'dcraw -4 -w -c ' + raw + ' | convert - ' + png97 proc = subprocess.Popen(command, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)98 return proc.communicate()99 100def raw2png_resize(raw, png):101 '''102 Convert raw image to png image103 Parameters104 ----------105 raw : string106 Raw filename107 png : string108 Output filename109 '''110 command = 'dcraw -4 -w -c ' + raw + ' | convert - -resize 25% ' + png111 proc = subprocess.Popen(command, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)112 proc.communicate()113 subprocess.check_call(['rm', '-f', raw])114 115def raw2png_crop(raw, png, roi):116 '''117 Convert raw image to png image with cropping118 Parameters119 ----------120 raw : string121 Raw filename122 png : string123 Output filename124 roi : string125 Crop region, imagemagick format.126 '''127 command = 'dcraw -4 -w -c ' + raw + ' | convert - -crop ' + roi + ' +repage ' + png128 proc = subprocess.Popen(command, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)129 proc.communicate()130 subprocess.check_call(['rm', '-f', raw])131 132def capture_and_show_intensity(roi):133 '''134 Capture and print mean intensity of the region135 Parameters136 ----------137 roi : string138 Crop region, imagemagick format.139 '''140 set_iso400()141 subprocess.check_call(['rm', '-rf', 'temp.nef'])142 capture_and_save('temp.nef')143 raw2png_crop('temp.nef', 'temp.ppm', roi)144 img = cv2.imread('temp.ppm', -1)145 print np.mean(img)146 147camera_conf_names = {148 'shutter': '/main/capturesettings/shutterspeed',149 'ISO': '/main/imgsettings/iso',150 'f-number': '/main/capturesettings/f-number'}151 152#def capture_multiple_gains():153# base_shutter = 41 # 3154# base_ISO = 0 # 100155# base_f_number = 5 # f/10156# set_property(camera_conf_names['f-number'], base_f_number)157# for iso in range(0, 24, 3):158# set_property(camera_conf_names['shutter'], base_shutter)159# set_property(camera_conf_names['ISO'], base_ISO)160# base_shutter -= 3161# base_ISO += 3162# capture_and_save('ISO'+str(iso)+'.nef')163# raw2png('ISO'+str(iso)+'.nef', 'ISO'+str(iso)+'.png')164# 165#def print_values():166# print 'target brightness: 16384' 167# for iso in range(0, 24, 3):168# print iso, np.amax(cv2.imread('ISO'+str(iso)+'.png', -1))169 170def set_ISO(value=6):171 '''172 Set ISO value.173 Parameters174 ----------175 value : int176 Index of configurable property values.177 ...
raw2png.py
Source:raw2png.py
1#!/usr/bin/python2#3# (c) 2015 Mike Chaberski4# 5# MIT License6from __future__ import with_statement7import os.path8from PIL import Image9import argparse10import csv11import sys12from math import sqrt13MAX_INPUT_LENGTH = 16 * 1024 * 1024 # 16 MB in bytes14def guess_dims(rawfile_pathname, input_width=None, warnaboutguess=False):15 if input_width is None and not warnaboutguess:16 print("raw2png: guessing image width by assuming square: ", rawfile_pathname, file=sys.stderr)17 rawfile_length = os.path.getsize(rawfile_pathname)18 assert rawfile_length < MAX_INPUT_LENGTH, \19 ('input exceeds max length: ' + 20 str(rawfile_length) +' > ' + str(MAX_INPUT_LENGTH))21 if input_width is None:22 input_width = int(sqrt(rawfile_length))23 image_height = rawfile_length / input_width24 if input_width * image_height != rawfile_length:25 print(("raw2png: bad guess: product width*height != file length; " +26 "%d * %d = %d != %d" % (input_width, image_height,27 input_width * image_height, rawfile_length)), file=sys.stderr)28 return input_width, image_height29def create_widths_map(args):30 m = dict()31 with open(args.widths_from, 'r') as ifile:32 reader = csv.reader(ifile, delimiter=' ')33 for row in reader:34 #print >> sys.stderr, row35 if args.wholenames: imname = row[0]36 else: imname = os.path.basename(row[0])37 w = int(row[1])38 m[imname] = w39 return m40def convert(raw_pathname, png_pathname, width, height, args):41 with open(raw_pathname, 'rb') as rawfile:42 data = rawfile.read()43 im = Image.fromstring(mode='L', size=(width, height), data=data)44 im.save(png_pathname, 'PNG')45 if args.verbose:46 print("%s -> %s (%d x %d)" % (raw_pathname, png_pathname, width, height), file=sys.stderr)47def main(args):48 if len(args.rawfile) > 1 and args.output is not None:49 print("raw2png: can't specify output for multiple files", file=sys.stderr)50 return 151 widthmap = None52 specwidth = args.width53 if args.widths_from is not None:54 widthmap = create_widths_map(args)55 for rawfile in args.rawfile:56 imname = rawfile57 if not args.wholenames: imname = os.path.basename(rawfile)58 if widthmap is not None:59 if imname in widthmap: specwidth = widthmap[imname]60 elif args.width is not None: specwidth = args.width61 image_width, image_height = guess_dims(rawfile, specwidth, True)62 outname = args.output63 if outname is None:64 outname = os.path.splitext(rawfile)[0] + ".png"65 convert(rawfile, outname, image_width, image_height, args)66 return 067def main():68 parser = argparse.ArgumentParser()69 parser.add_argument("rawfile", nargs='+', default=list(), 70 help="raw grayscale image file to convert to PNG format")71 parser.add_argument("-v", "--verbose", action="store_true", default=False)72 parser.add_argument("-o", "--output", metavar="PATHNAME", dest="output")73 parser.add_argument("--wholenames", action="store_true", default=False, 74 help="use whole pathnames when creating map from --widths-from" 75 + " file (default is to use basenames only)")76 parser.add_argument("-w", "--width", metavar="WIDTH", type=int, 77 help="image width (if not square)")78 parser.add_argument("--widths-from", metavar="WIDTHSFILE", 79 help="specify file to get raw image widths from; file should "80 + "contain image filenames and widths, separated by a space")81 args = parser.parse_args()...
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