Free Image Cropper 


Name Message
DUFFY
Posts: 733

Joined: 10/8/2019
Topic  Free Image Cropper       Flag »  Reply »
Hey so I just subscribed to this plugin and it’s great except… it says you can completely lock the cropbox but I’m not seeing how to do that. Even when setting “Resizeable Cropbox” to “no” it still lets the user create their own cropbox and eliminates the established ratio. Am I missing something? This is kinda the whole reason I wanted this plugin…
  Monday, March 9, 2020 at 3:00:09 AM
ROBINSON
Posts: 235

Joined: 5/8/2019
Reply  Re: Free Image Cropper Flag »  Reply »
unfortunately, the Cropper has its own (very limited) User-Interface. Therefore you can't really configure the Cropper using Flow Variables, yet. Anyway, I created an example workflow which demonstrates how you can "easily" create a masked image. The workflow needs of course some more polishing, but when you have the mask, you can use the SegmentCropper to crop the individual parts of your image.
  Monday, March 9, 2020 at 3:01:19 AM
disruptivetalk
Posts: 171

Joined: 8/25/2019
Reply  Re: Free Image Cropper Flag »  Reply »
I adapted your workflow to generate a mask with 10*10 segments of size 100*100 and used this mask to crop a RGB image. Before cropping the RGB images I splitted it into the three channels. The "Segment Cropper" with Option "Image Column" = <none> creates a white bittype image, with option "Image Column" = column with IMGplus image creates an empty table. A bittype image does not make sense for my problem because I want to split the original image into several parts. Any idea? See my attached workflow.

  Monday, March 9, 2020 at 3:01:34 AM
RUIZ
Posts: 195

Joined: 5/16/2019
Reply  Re: Free Image Cropper Flag »  Reply »
Your "mask" imags has to not the same dimensionality as the other image. You should adapt the workflow and the parametres (also in the java snippets) in the mask creation. In this "workaround" workflow, the dimensiony of mask / image have to match. It would be relatively easy to write a small JavaSnippet or IMAGEJ2 Snippet which does exactly what you want. But this functionality (snippets with image data) will be available only with the new 1.3.0 release end of the year.

  Monday, March 9, 2020 at 3:01:48 AM
DALTON
Posts: 97

Joined: 11/17/2019
Reply  Re: Free Image Cropper Flag »  Reply »
Yes I used the segment cropper, thought this topic was about that, sorry. However I have a mask and the image it comes from, and I want to take the area of the mask from the original image to feed it into OCR, as feeding the OCR with the entire image doesn't produce propper results.
  Monday, March 9, 2020 at 3:02:05 AM
DUFFY
Posts: 733

Joined: 10/8/2019
Reply  Re: Free Image Cropper Flag »  Reply »
Awesome. Sorry I couldn't find a better solution since now. but its on my list. In the other thread I already mentoined the node tutorials for "GroupBy" and "LabelingFilter" on the Example Server (099_CommunityContributions/ImageProcessing/Tutorials). There you learn how to reproduce Segmentations/Labelings from tables.
  Monday, March 9, 2020 at 3:02:20 AM
jonsmaradona
Posts: 259

Joined: 12/28/2019
Reply  Re: Free Image Cropper Flag »  Reply »
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  Wednesday, March 11, 2020 at 5:10:34 AM
watchesbiz
Posts: 27498

Joined: 3/21/2021
Reply  Re: Free Image Cropper Flag »  Reply »
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  Thursday, May 12, 2022 at 2:15:13 AM


 
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