softwarestudies/scripts/panelops.py at master · jaychow/softwarestudies · GitHub

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

#!/usr/bin/env python

import sys

import os

from PIL import Image

from PIL import ImageDraw

import math

def cutOffEdges(image):

print "Cropping Edges...",

imageCopy = image.copy()

#size

xSize = image.size[0]

ySize = image.size[1]

#find left most frame edge

image = image.convert("L")

#make into matrix

pix = image.load()

whiteThresh = 100

#find upper edge

upperEdge = 0

thisRowAllWhite = True

for y in range(0, ySize):

if not thisRowAllWhite:

upperEdge = y

break

for x in range(0, xSize):

if not (pix[x,y] > whiteThresh):

thisRowAllWhite = False

#find left edge

leftEdge = 0

thisColumnAllWhite = True

for x in range(0, xSize):

if not thisColumnAllWhite:

leftEdge = x

break

for y in range(0, ySize):

if not (pix[x,y] > whiteThresh):

thisColumnAllWhite = False

#find bottom edge

bottomEdge = ySize

thisRowAllWhite = True

ry = range(0, ySize-1)

ry.reverse()

for y in ry:

if not thisRowAllWhite:

bottomEdge = y

break

for x in range(0, xSize):

if not (pix[x,y] > whiteThresh):

thisRowAllWhite = False

#find right edge

rightEdge = xSize

thisColumnAllWhite = True

rx = range(0, xSize-1)

rx.reverse()

for x in rx:

if not thisColumnAllWhite:

rightEdge = x

break

for y in range(0, ySize):

if not (pix[x,y] > whiteThresh):

thisColumnAllWhite = False

print "L:", leftEdge, "U:", upperEdge, "R:", rightEdge, "B:", bottomEdge

image = imageCopy

image = image.crop((leftEdge, upperEdge, rightEdge, bottomEdge))

return image

def getNextPanel (image, imageName, outDir, panelNum, threshdir, thresh):

print "Finding Panel", panelNum

imageCopy = image.copy()

#size

xSize = image.size[0]

ySize = image.size[1]

image = image.convert("L")

#make into matrix

pix = image.load()

minPanelWidth = xSize/4

minPanelHeight = ySize/4

whiteThresh = int(thresh)

fudgeFactor = max([ySize,xSize])/500

d = int(threshdir)

print "w:", d

if d < 0:

bgc = 'black'

else:

bgc = 'white'

upperEdge = 0 #assumes the upper edge is at 0

leftEdge = 0 #ditto left

#code to find the upper left corner so that you don't have to crop it first

#find upper edge

upperEdge = 0

notWhiteCount = 0

#print "Finding upper edge..."

for y in range(0, ySize-1):

#print "Trying row", y

for x in range(0, xSize-1):

if(x >= xSize) and (y >= ySize):

#print "Ran out of image at", (x,y)

return imageCopy

if d*pix[x,y] < d*whiteThresh:

notWhiteCount +=1

#print "notWhiteCount:", notWhiteCount

if notWhiteCount > minPanelWidth - fudgeFactor:

upperEdge = y

break

#find left edge

leftEdge = 0

notWhiteCount = 0

#print "Finding left edge..."

for x in range(0, xSize-1):

#print "Trying column", x

for y in range(upperEdge, upperEdge+minPanelHeight):

if(x >= xSize) or (y >= ySize):

#print "Ran out of image at", (x,y)

return imageCopy

if d*pix[x,y] < d*whiteThresh:

notWhiteCount += 1

#print "notWhiteCount:", notWhiteCount

if notWhiteCount > minPanelHeight - fudgeFactor:

leftEdge = x

break

print "upperEdge:", upperEdge

print "leftEdge:", leftEdge

x = leftEdge

####### GUTTERS #############

#go down left edge until there is a white line

for y in range(upperEdge+(fudgeFactor), ySize - 1):

#could this be the start of a gutter?

if d*pix[x,y] > d*whiteThresh: #found a white pixel

couldBeAGutter = True #assumes that its true

#print "Possible horz. gutter at", y

#checks assumtion

notWhiteCount = 0

for x in range(leftEdge,leftEdge+minPanelWidth): #see if the whiteness goes in enough that it could be a gutter

if x >= xSize-1 or y >= ySize-1:

break

if(x >= xSize - fudgeFactor) and (y >= ySize - fudgeFactor):

#print "Ran out of image at", (x,y)

return imageCopy

if d*pix[x, y] < d*whiteThresh:

notWhiteCount += 1

#########################################################

### I would like to bring attention to this next line ###

#########################################################

if notWhiteCount > fudgeFactor: ### The right side of this inequality is the gutter fudge factor

couldBeAGutter = False

#if assumtion holds

if couldBeAGutter or (y >= ySize - fudgeFactor): #found one on the left edge or at bottom of image

if (y >= ySize - fudgeFactor):

print "Full height panel"

#print "Got horz. gutter at", y #well sort of... ;)

yGutterLoc = y #save this y so we can resue the variable

y = upperEdge

#go along top until there is a white line down

for x in range(leftEdge, xSize-1):

#could this be the start of another gutter?

if (d*pix[x,y] > d*whiteThresh) or (x >= xSize - fudgeFactor): #found a white pixel along top or at end of picture

couldBeAGutter = True

#print "Possible vert. gutter at",(x,y)

#checks if it really could be

notWhiteCount = 0

for y in range(upperEdge,upperEdge+minPanelHeight):#see if the whiteness goes down

if d*pix[x,y] < d*whiteThresh: #it doesnt

#print "Possible vert. gutter at", (x,y), "fails"

notWhiteCount += 1

#########################################################

### I would like to bring attention to this next line ###

#########################################################

if notWhiteCount > fudgeFactor: ### The right side of this inequality is the gutter fudge factor

couldBeAGutter = False

#else:

#print "Checks out", pix[x,y], "at", (x,y)

#yep

if couldBeAGutter or (x >= xSize - fudgeFactor): #found another or at right

if (x >= xSize - fudgeFactor):

print "Full width panel"

#OK so we've found another possible gutter

#we should check if they meet but I wont ;)

print "Got panel", panelNum

image = imageCopy

print "Cropping", (leftEdge,upperEdge),(x,yGutterLoc)

if (x - leftEdge) <= fudgeFactor or (yGutterLoc - upperEdge) <= fudgeFactor:

#this isn't a panel it's must be some kind of artifact

print "Found artifact at", (leftEdge,upperEdge),(x,yGutterLoc)

draw = ImageDraw.Draw(image)

draw.rectangle([leftEdge-fudgeFactor,upperEdge-fudgeFactor,x,yGutterLoc], fill = bgc)

draw = None

return image

panel = imageCopy.crop((leftEdge,upperEdge,x,yGutterLoc))#adds this panel to the list

#write to output file

path = outDir

fo = open(os.path.join(path, 'PanelData.txt'), "a")

fo.write(str(imageName) + ', ' + str(panelNum) + ', '+ str(leftEdge)+', '+str(upperEdge)+ ', '+ str(x)+', '+str(yGutterLoc)+'\n')

#save panel

print "Saving...",

if not os.path.isdir(outDir):

os.mkdir(outDir)

newFileName = imageName.rstrip(".jpg")

#pageNum = newFileName[newFileName.index('-')+1:]

#print "Page #", pageNum

#issue = newFileName[:newFileName.index('-')]

newFileName = newFileName + "-f" + str(panelNum) + ".jpg"

print newFileName

path = outDir

panel.convert('RGB').save(os.path.join(path,newFileName), "JPEG")

draw = ImageDraw.Draw(image)

print "Fill Color =", max([0,255*d])

draw.rectangle([leftEdge-fudgeFactor,upperEdge-fudgeFactor,x,yGutterLoc], fill=bgc)

draw = None

return image

#I guess we didn't find anything

return image #image is now greyscale btw. return imageCopy if you want... hope you don't actually end up here

def checkAllWhite (image, imageName):

print "Checking All White..."

imageCopy = image.copy()

#size

xSize = image.size[0]

ySize = image.size[1]

image = image.convert("L")

#make into matrix

pix = image.load()

maxNumPanels = 4

minPanelWidth = 300

minPanelHeight = 400

whiteThresh = 220

for y in range(0,ySize):

for x in range(0,xSize):

if pix[x,y] < whiteThresh:

print "This one did not check out. You might want to have to look at it..."

print "Extra info:", (x,y), "Value:", pix[x,y]

return -1

print "All white"

return 0

softwarestudies/scripts/panelops.py at master · jaychow/softwarestudies · GitHub

Repository navigation

Expand file tree

Breadcrumbs

panelops.py

Latest commit

History

Breadcrumbs

panelops.py

File metadata and controls