I am working on a project that involves image processing for contour extraction and I’m seeking some guidance on the best approach. I have a basic understanding of Python, but I am open to solutions in C# as well, especially if they offer increased efficiency or ease of integration. Objective: My g…

Hello have you seen this discussion ? [image] Create a "Paint by Numbers" script Grasshopper Hello GH community, I am trying to transform a picture into a “paint by numbers” (childhood nostalgia…) In photoshop for example, it can be made by using a cutout filter, to spl…

Hi @laurent_delrieu yes, i remember reading it, i just forgot all about how related it is to my request. I’ll dive right into it. Thanks!!

RTrees are not the way to go. Assuming that you know how to Cluster things (let’s forget // for the monent) : Using some proper Class (in order to monitor the x/y cell value) Cluster your pixels. This yields a higher order collection (Tree) or … use suitable Properties in the Class to control th…

[image] Pfotiad0: Solution: Number of Islands interesting links, good to know what terms to google for. I try to make a fast and scaleable script based upon both your inputs and share the results (optimistically i am aiming for 8k res processing in < 5 sec calculation)

Another - stupid/lazy- way could be: sample your pixels (as meshes) into the Class collection then GroupBy(x=>x.Color), then OrderBy(x=>x.Center.X).ThenBy(x=>x.Center.Y) and Append’m into a Mesh (per Group). Then just use the SplitDisjointPieces Method and then the GetNakedEdges Method per island (i…

OK … stupid things are like Cuban cigars: the more the better. So I did the right (i.e. the wrong) thing. Result? 100 ms VS 7K pixels as Meshes (using an ancient i5 - I always use a crap CPU when writing code). So expect 20 ms max (using ~10+K pixels) on an 14th gen I9 … plus a thread safe // appro…

wow, that sure looks like a flawless victory to me. Impressive, and inspiring. You’d be surprised how often the stupid thing is the right thing

Get the part related with reading a Class defined in one C# i.e. unboxing it in another C#. Always do that for more than obvious reasons. Input the Class content as a List of type object, define a Class with exactly the same Properties (as the OEM) and then do: [Screen Shot 090] So as a challeng…

Best method for Image Processing for Contour Extraction

Grasshopper

laurent_delrieu (Laurent Delrieu) January 18, 2024, 7:16am 2

Hello
have you seen this discussion ?

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Best method for Image Processing for Contour Extraction

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