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    How to debug crash of image script when it's called as extension

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    • cvp
      cvp @halloleooo last edited by

      @halloleooo I think that a pil image of 10000x10000 pixels uses 10000x10000x4 bytes = 400 MB
      even if your compressed jpeg is a 6MB file

      halloleooo 1 Reply Last reply Reply Quote 0
      • halloleooo
        halloleooo @cvp last edited by

        @cvp Aha! that makes total sense!

        But how can I not run in appex mode, but still join images from anywhere? I thought that's what share extensions are for...

        cvp 3 Replies Last reply Reply Quote 0
        • cvp
          cvp @halloleooo last edited by

          @halloleooo perhaps find a way without passing via pil, for example, via ui.image_context?

          1 Reply Last reply Reply Quote 0
          • cvp
            cvp @halloleooo last edited by

            @halloleooo if you want a join of original pictures, I think that even ui.image_context will use a lot of memory, but if you want a smaller jointed image, it could be possible to work with resized images.

            1 Reply Last reply Reply Quote 0
            • cvp
              cvp @halloleooo last edited by

              @halloleooo please, try this one in the share sheet

              import appex
              import ui
              import io
              from PIL import Image
              
              def pil2ui(imgIn):
              	with io.BytesIO() as bIO:
              		imgIn.save(bIO, 'PNG')
              		imgOut = ui.Image.from_data(bIO.getvalue())
              		del bIO
              	return imgOut
              
              ui_images = []	
              
              # assume two images are shared
              files = appex.get_attachments()
              for f in files:
              	pil = Image.open(f)#,mode='r')
              	ui_image = pil2ui(pil)
              	del pil
              	w,h = ui_image.size
              	wi = 400
              	hi = wi*h/w
              	with ui.ImageContext(wi,hi) as ctx:
              		ui_image.draw(0,0,wi,hi)
              		del ui_image
              		ui_resize = ctx.get_image()
              		ui_images.append(ui_resize)
              		del ui_resize		
              	
              w1,h1 = ui_images[0].size
              w2,h2 = ui_images[1].size
              # assume images have same height
              with ui.ImageContext(w1+w2,h1) as ctx:
              	ui_images[0].draw(0,0,w1,h1)
              	ui_images[1].draw(w1,0,w2,h2)
              	ui_image_joined = ctx.get_image()
              w,h = ui_image_joined.size
              v = ui.ImageView()
              v.frame = (0,0,400,400*h/w)
              v.content_mode = ui.CONTENT_SCALE_ASPECT_FIT
              v.image = ui_image_joined
              v.present('')
              
              halloleooo 1 Reply Last reply Reply Quote 0
              • halloleooo
                halloleooo @cvp last edited by

                @cvp Thanks for the detailed script.

                One thing I am wondering about is: You get the images from the share extension as PIL images via

                appex.get_attachments()
                

                and then convert them to UI images. Isn't there a way to get them directly as UI images? I thought UI image is the iOS-native format...

                cvp 1 Reply Last reply Reply Quote 0
                • cvp
                  cvp @halloleooo last edited by cvp

                  @halloleooo you're right but we got some problems with images in appex mode, thus...
                  Else, I use this where you can set type you want

                  img = appex.get_image(image_type='pil')
                  
                  1 Reply Last reply Reply Quote 0
                  • JonB
                    JonB last edited by

                    Doesn't appex provide a get_ui_image function? That will be much lighter weight than going through PIL and back.

                    cvp 1 Reply Last reply Reply Quote 1
                    • cvp
                      cvp @JonB last edited by cvp

                      @JonB sure, he knows that, but in the past, we got some problems with it.

                      Édit: believe me, if we go through pil, it is not for the pleasure to do it.

                      halloleooo 1 Reply Last reply Reply Quote 0
                      • halloleooo
                        halloleooo @cvp last edited by

                        @cvp So what are the problems with get_ui_image?

                        cvp 2 Replies Last reply Reply Quote 0
                        • cvp
                          cvp last edited by

                          Correction: appex does not have a get_ui_image

                          1 Reply Last reply Reply Quote 0
                          • cvp
                            cvp last edited by

                            We mixed with asset.get_ui_image

                            1 Reply Last reply Reply Quote 0
                            • cvp
                              cvp last edited by

                              I have been disturbed only because the post comes from @JonB

                              1 Reply Last reply Reply Quote 0
                              • cvp
                                cvp @halloleooo last edited by cvp

                                @halloleooo doc dixit, you could try with

                                img = appex.get_image(image_type='ui')
                                
                                #files = appex.get_attachments()
                                #for f in files:
                                files = appex.get_images(image_type='ui')
                                for ui_image in files:
                                	#pil = Image.open(f)#,mode='r')
                                	#ui_image = pil2ui(pil)
                                	#del pil
                                
                                1 Reply Last reply Reply Quote 0
                                • halloleooo
                                  halloleooo last edited by ccc

                                  I think the Pyhonista docs mentions appex.get_ui_image(). Is this wrong?

                                  cvp 5 Replies Last reply Reply Quote 0
                                  • cvp
                                    cvp @halloleooo last edited by

                                    @halloleooo modif just above also crashes with two big photos...

                                    1 Reply Last reply Reply Quote 0
                                    • cvp
                                      cvp @halloleooo last edited by

                                      @halloleooo said:

                                      I think the Pyhonista doco mentions appex.get_ui_image(). Is this wrong?

                                      The internal doc, reached via help, and the source of appex.py do not mention it

                                      1 Reply Last reply Reply Quote 0
                                      • cvp
                                        cvp @halloleooo last edited by

                                        @halloleooo but, as I said previously, asset.get_ui_image exists

                                        1 Reply Last reply Reply Quote 0
                                        • cvp
                                          cvp @halloleooo last edited by

                                          @halloleooo print dir(appex) to confirm

                                          1 Reply Last reply Reply Quote 0
                                          • cvp
                                            cvp @halloleooo last edited by

                                            @halloleooo I said"modif just above also crashes with two big photos..." but with pil it works

                                            1 Reply Last reply Reply Quote 0
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