smart cover crop is now an option default off (#1288)

README.md

@@ -270,6 +270,7 @@ PROCESSING:
                         Crop empty sections. 0: Disabled 1: Horizontally 2: Both [Default=0]
   --blackborders        Disable autodetection and force black borders
   --whiteborders        Disable autodetection and force white borders
+  --smartcovercrop      Attempt to crop main cover from wide image
   --coverfill           Center-crop only the cover to fill target device screen
   --forcecolor          Don't convert images to grayscale
   --forcepng            Create PNG files instead JPEG for black and white images

gui/KCC.ui

@@ -975,6 +975,16 @@ May crop top/bottom or left/right depending on source aspect ratio. Not implemen
          </property>
         </widget>
        </item>
+       <item row="11" column="1">
+        <widget class="QCheckBox" name="smartCoverCropBox">
+         <property name="toolTip">
+          <string>Attempt to crop main cover from wide image.</string>
+         </property>
+         <property name="text">
+          <string>Smart Cover Crop</string>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
     </item>

kindlecomicconverter/KCC_gui.py

@@ -331,6 +331,8 @@ class WorkerThread(QThread):
             options.pdfextract = True
         if GUI.pdfWidthBox.isChecked():
             options.pdfwidth = True
+        if GUI.smartCoverCropBox.isChecked():
+            options.smartcovercrop = True
         if GUI.coverFillBox.isChecked():
             options.coverfill = True
         if GUI.metadataTitleBox.checkState() == Qt.CheckState.PartiallyChecked:
@@ -1053,6 +1055,7 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
                                            'disableProcessingBox': GUI.disableProcessingBox.checkState(),
                                            'pdfExtractBox': GUI.pdfExtractBox.checkState(),
                                            'pdfWidthBox': GUI.pdfWidthBox.checkState(),
+                                           'smartCoverCropBox': GUI.smartCoverCropBox.checkState(),
                                            'coverFillBox': GUI.coverFillBox.checkState(),
                                            'metadataTitleBox': GUI.metadataTitleBox.checkState(),
                                            'mozJpegBox': GUI.mozJpegBox.checkState(),

kindlecomicconverter/KCC_ui.py

@@ -497,6 +497,11 @@ class Ui_mainWindow(object):
 
         self.gridLayout_2.addWidget(self.forcePngRgbBox, 11, 2, 1, 1)
 
+        self.smartCoverCropBox = QCheckBox(self.optionWidget)
+        self.smartCoverCropBox.setObjectName(u"smartCoverCropBox")
+
+        self.gridLayout_2.addWidget(self.smartCoverCropBox, 11, 1, 1, 1)
+
 
         self.gridLayout.addWidget(self.optionWidget, 5, 0, 1, 2)
 
@@ -806,6 +811,10 @@ class Ui_mainWindow(object):
         self.forcePngRgbBox.setToolTip(QCoreApplication.translate("mainWindow", u"Force full color images to be saved in lossless PNG format, dramatically increases the filesize.", None))
 #endif // QT_CONFIG(tooltip)
         self.forcePngRgbBox.setText(QCoreApplication.translate("mainWindow", u"Force PNG RGB", None))
+#if QT_CONFIG(tooltip)
+        self.smartCoverCropBox.setToolTip(QCoreApplication.translate("mainWindow", u"Attempt to crop main cover from wide image.", None))
+#endif // QT_CONFIG(tooltip)
+        self.smartCoverCropBox.setText(QCoreApplication.translate("mainWindow", u"Smart Cover Crop", None))
         self.gammaLabel.setText(QCoreApplication.translate("mainWindow", u"Gamma: Auto", None))
         self.jpegQualityLabel.setText(QCoreApplication.translate("mainWindow", u"JPEG Quality:", None))
     # retranslateUi

kindlecomicconverter/comic2ebook.py

@@ -1376,6 +1376,8 @@ def makeParser():
                                     help="Use the legacy PDF image extraction method from KCC 8 and earlier")
     processing_options.add_argument("--pdfwidth", action="store_true", dest="pdfwidth", default=False,
                                     help="Render vector PDFs to device width instead of height.")
+    processing_options.add_argument("--smartcovercrop", action="store_true", dest="smartcovercrop", default=False,
+                                    help="Attempt to crop main cover from wide image")
     processing_options.add_argument("--coverfill", action="store_true", dest="coverfill", default=False,
                                     help="Crop cover to fill screen")
     processing_options.add_argument("-u", "--upscale", action="store_true", dest="upscale", default=False,

kindlecomicconverter/image.py

@@ -572,7 +572,8 @@ class Cover:
         self.image = ImageOps.autocontrast(self.image, preserve_tone=True)
         if not self.options.forcecolor:
             self.image = self.image.convert('L')
-        self.crop_main_cover()
+        if self.options.smartcovercrop:
+            self.crop_main_cover()
 
         size = list(self.options.profileData[1])
         if self.options.kindle_scribe_azw3: