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Code Issues Releases Wiki Activity

Fixes to grayscale pages in forcecolor mode (#978)

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* Fix bit depth of non-color pages in forcecolor mode

* Optimization for JPEG non-color pages in forcecolor mode
This commit is contained in:
Adrian
2025-06-19 01:12:12 +03:00
committed by GitHub
parent 2fa90c9f59
commit e9f0310b94
2 changed files with 8 additions and 4 deletions
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4
kindlecomicconverter/comic2ebook.py
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@@ -642,8 +642,8 @@ def imgFileProcessing(work):
img.autocontrastImage() img.autocontrastImage()
img.resizeImage() img.resizeImage()
img.optimizeForDisplay(opt.reducerainbow) img.optimizeForDisplay(opt.reducerainbow)
if opt.forcepng and not opt.forcecolor: if not opt.forcecolor or (opt.forcecolor and not workImg.color):
img.quantizeImage() img.convertToGrayscaleOrQuantize()
output.append(img.saveToDir()) output.append(img.saveToDir())
return output return output
except Exception: except Exception:

8
kindlecomicconverter/image.py
View File

@@ -304,8 +304,6 @@ class ComicPage:
def saveToDir(self): def saveToDir(self):
try: try:
flags = [] flags = []
if not self.opt.forcecolor and not self.opt.forcepng:
self.image = self.image.convert('L')
if self.rotated: if self.rotated:
flags.append('Rotated') flags.append('Rotated')
if self.fill != 'white': if self.fill != 'white':
@@ -353,6 +351,12 @@ class ComicPage:
else: else:
self.image = ImageOps.autocontrast(Image.eval(self.image, lambda a: int(255 * (a / 255.) ** gamma))) self.image = ImageOps.autocontrast(Image.eval(self.image, lambda a: int(255 * (a / 255.) ** gamma)))
def convertToGrayscaleOrQuantize(self):
if self.opt.forcepng:
self.quantizeImage()
else:
self.image = self.image.convert('L')
def quantizeImage(self): def quantizeImage(self):
palImg = Image.new('P', (1, 1)) palImg = Image.new('P', (1, 1))
palImg.putpalette(self.palette) palImg.putpalette(self.palette)