Image crop, resize and CMYK conversion. Save and reload in TIFF format
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This scripter script crop and resize an image, save it and reload it in TIFF format. Optionaly, convert color space to grayscale, RGB or CMYK (not recomended, as PIL CMYK don't generate the black plate. Let Scribus do the job). Need Scribus 1.3.8 and use Python Image Library.
Use: select a frame with image and run the script. Is will creat and load a new cropped TIFF image.
Caveat: PIL currently freeze Scribus in Ubuntu 10.04, if run as menu script, due a PIL bug, or Python 2.6 bug, or Scripter bug, or Ubuntu bug. Run OK in Scripter console (F9 keystroke) and in Windows XP or Wine.
#!/usr/bin/python # -*- coding: utf-8 -*- """ Crop, resample and convert color space on selected photo in Scribus. Use: select a frame with image and run the script. It will create and load a new cropped TIFF image. By prof. MS. José Antonio Meira da Rocha mailto:joseantoniorocha@gmail.com http://meiradarocha.jor.br License GPL 2010-08-15a PIL docs: http://infohost.nmt.edu/tcc/help/pubs/pil/image-constructors.html http://www.pythonware.com/library/pil/handbook/index.htm """ import sys if sys.platform != 'win32': sys.path.append("/usr/lib/python2.6") # prevent 'import re' PIL bug in Scribus 1.3.8, Ubuntu 10.04 try: import scribus except ImportError,err: print "This Python script is written for the Scribus scripting interface." print "It can only be run from within Scribus." sys.exit(1) from scribus import UNIT_POINTS, UNIT_MILLIMETERS, UNIT_INCHES, LINE_SOLID, JOIN_MITTER, BUTTON_OK, BUTTON_NO, BUTTON_YES, ICON_WARNING, ICON_INFORMATION, pt, mm ######################### # USER IMPORTS GOES HERE ######################### import os from string import Template ############################################# # OS string encoding for PIL handle filenames # (too much time to discover this) ############################################# encoding = sys.getfilesystemencoding() ################################ # User can change this variables ################################ imageResolution = 200 # DPI resolution for newspaper fileType = '.tif' # force tiff format cropsufix = '_cropped' # cropped image sufix colorspace = 'RGB' ## 'L' for grayscale, 'CMYK' for cmyk, 'RGB' for rgb. ################### # Scribus Constants UNDER_FRAME = 0 AROUND_FRAME = 1 BOUNDING_BOX = 2 CONTOUR_LINE = 3 SCALETOFRAME = 1 FREESCALE = 0 PROPORTIONAL = 1 DISTORTED = 0 ###################### # Locale strings ###################### # Dialog to open document askResolutionLabel="Choose the resolution" askResolution = '<h2>'+askResolutionLabel+'</h2>' \ + '<p>Choose the resolution to resample the image (200 ppi, 300ppi)</p>' # openImageErrorLabel = 'Open error' openImageErrorMsg = '<h2>'+openImageErrorLabel+'</h2>' \ + '<p>Error opening the image file.</p>' # openDocLabel="Open a document" askOpenDoc = '<h2>'+openDocLabel+'</h2>' \ + '<p>Please, open a document and select a image frame before using this script.</p>' # Strings to open frame imageFrameLabel = "Select a image frame" askSelectImageFrame = '<h2>'+imageFrameLabel+'</h2>' \ + "Select <b>a image frame</b>\n" \ + "to crop it image." # Out of range image strings outOfRangeLabel = 'Image out of limits' msgOutOfRange = '<h2>'+outOfRangeLabel+'</h2><p>Choose a beetter crop area.' # Error on save image errorOnSaveLabel = 'Save error' errorOnSaveMsg = '<h2>'+errorOnSaveLabel+'</h2><p>Error saving the cropped image.' # Error on cropping cropErrorLabel = 'Error cropping image' cropErrorMsg = '<h2>'+cropErrorLabel+'</h2><p>.' # Error on loading image errorOnLoadLabel = 'Error loading image' errorOnLoadMsg = '<h2>'+errorOnLoadLabel+'</h2>Verify if image exist.' ######################################### # Localized group name # Put your language string for group names in dictionary # For use by isGroup() function stringsDic = {'en_US':'Group', 'en_GB':'Group', 'en_AU':'Group', 'pt_BR':'Agrup','pt': 'Agrup'} lang = scribus.getGuiLanguage() try: groupString = stringsDic[lang] except: scribus.messageBox('Missing group string','Put <b>group</b> string in your language in "stringsDic".',ICON_WARNING,BUTTON_OK) sys.exit(1) # foot msg statusText = "Running script..." # # End Locale strings #################### ############# # PIL library ############# # 'import Image' cause Scribus freeze after script run, in Ubuntu 10.04. # OK in Windows XP, Python 2.5.4, PIL 1.1.7 try: import Image except ImportError,err: print "This Python script is written for the PIL graphic interface." print "It should be instaled in Scribus Python tree." sys.exit(1) ############################################## # Test object type ############################################# def isGroup(obj): """Verify if object is group.""" type = scribus.getObjectType(obj) if (type == 'Polygon') and (scribus.selectionCount() > 1) and (obj.find(groupString) != -1): return 1 else: return 0 def isTextFrame(obj): """Verify if object is text frame.""" type = scribus.getObjectType(obj) if (type == 'TextFrame'): return 1 else: return 0 def isGraphicFrame(obj): """Verify if object is image frame.""" type = scribus.getObjectType(obj) if (type == 'ImageFrame'): return 1 else: return 0 ###################### # Open image ###################### def openImage(imageFrame): imf = scribus.getImageFile(imageFrame) try: image = Image.open(imf.encode(encoding)) # encode to let PIL handle accented filenames except: scribus.messageBox(openImageErrorLabel,openImageErrorMsg,ICON_WARNING,BUTTON_OK) sys.exit(1) return image,imf ################## # Crop Image ################## def cropImage(image,imageFrame): imageXOffset = scribus.getProperty(imageFrame,'imageXOffset') imageYOffset = scribus.getProperty(imageFrame,'imageYOffset') # avoid offset positive if (imageXOffset > 0) or (imageYOffset > 0): scribus.setScaleImageToFrame(SCALETOFRAME,PROPORTIONAL,imageFrame) scribus.setRedraw(True) scribus.setScaleImageToFrame(FREESCALE,PROPORTIONAL,imageFrame) scribus.messageBox(outOfRangeLabel,msgOutOfRange,ICON_WARNING,BUTTON_OK) sys.exit(1) # Calculate image resample to press resolution (DPI) unit = scribus.getUnit() scribus.setUnit(UNIT_INCHES) frameSizeX,frameSizeY = scribus.getSize(imageFrame) newWidth = frameSizeX * imageResolution newHeight = frameSizeY * imageResolution scribus.setUnit(unit) # Calculate cropping frameSizeX,frameSizeY = scribus.getSize(imageFrame) imageXScale = scribus.getProperty(imageFrame,'imageXScale') imageYScale = scribus.getProperty(imageFrame,'imageYScale') imageSizeX, imageSizeY = image.size left = imageXOffset * -1 # top = imageYOffset * -1 # right = left + (frameSizeX / imageXScale) bottom = top + (frameSizeY / imageYScale) # avoid frame out of image if (right > imageSizeX) or (bottom > imageSizeY): scribus.setScaleImageToFrame(SCALETOFRAME,PROPORTIONAL,imageFrame) scribus.setRedraw(True) scribus.setScaleImageToFrame(FREESCALE,PROPORTIONAL,imageFrame) scribus.messageBox(outOfRangeLabel,msgOutOfRange,ICON_WARNING,BUTTON_OK) sys.exit(1) # do cropping try: im = image.crop((left,top,right,bottom)) im = im.resize((int(newWidth),int(newHeight)),Image.ANTIALIAS)# BICUBIC,NEAREST, BILINEAR, ANTIALIAS except: scribus.messageBox(cropErrorLabel,cropErrorMsg,ICON_WARNING,BUTTON_OK) sys.exit(1) # Colorspace conversion if im.mode != colorspace: im = im.convert(colorspace) return im #################### # Test if file exist #################### def fileExist(fileName): try: f = open(fileName,'r') return 1 except: return 0 ################# # Save Image ################# def saveImage(newImage,imageFile): name,ext = os.path.splitext(imageFile) # increment file version to avoid overwriting old files f = Template(name+cropsufix+'($version)'+fileType) count = 1 newImageFile = f.substitute(version=str(count)) while fileExist(newImageFile.encode(encoding)): count += 1 newImageFile = f.substitute(version=str(count)) try: #'encode' let PIL handle accented filenames newImage.save(newImageFile.encode(encoding),dpi=(imageResolution,imageResolution)) except: scribus.messageBox(errorOnSaveLabel,errorOnSaveMsg,ICON_WARNING,BUTTON_OK) sys.exit(1) return newImageFile ####################### # Reload image to frame ####################### def reloadImage(newImageFile,imageFrame): try: scribus.loadImage(newImageFile,imageFrame) except: scribus.messageBox(errorOnLoadLabel,errorOnLoadMsg,ICON_WARNING,BUTTON_OK) sys.exit(1) scribus.setScaleImageToFrame(SCALETOFRAME,PROPORTIONAL,imageFrame) ################## # Handle Image ################## def handleImage(imageFrame): image,imageFile = openImage(imageFrame) newImage = cropImage(image,imageFrame) newImageFile = saveImage(newImage,imageFile) reloadImage(newImageFile,imageFrame) ################## # Handle selection ################## def handleSelection(): """Handle selected objects.""" if (scribus.selectionCount() == 1) and isGraphicFrame(scribus.getSelectedObject()): imageFrame = scribus.getSelectedObject() handleImage(imageFrame) else: scribus.messageBox(imageFrameLabel,askSelectImageFrame,ICON_WARNING,BUTTON_OK) ##################### # Handle document ##################### def handleDocument(): """Handle documents """ # If there are open document if scribus.haveDoc(): # turn off redraw scribus.setRedraw(False) # Save unit unit = scribus.getUnit() # Define unit in points scribus.setUnit(UNIT_POINTS) # pre-press mesure system print handleSelection() # Recover units scribus.setUnit(unit) else: # If there not open document. scribus.messageBox(openDocLabel,askOpenDoc,ICON_WARNING,BUTTON_OK) def myCode(): """ User code """ handleDocument() def main(argv): """Main entry point""" myCode() def main_wrapper(argv): try: scribus.statusMessage(statusText) scribus.progressReset() main(argv) finally: if scribus.haveDoc(): scribus.setRedraw(True) scribus.statusMessage("") scribus.progressReset() if __name__ == '__main__': main_wrapper(sys.argv)