Hi everyone! Thanks for the comments, I don't create a repository yet because, in this first version, I just wanted to try if it was possible, so only create a Form subclass and add three methods.
Form subclass: #ImageForm instanceVariableNames: 'mode' classVariableNames: '' package: ‘SmallImage' ——> + aImage "add two image and return a new ImageForm" |aImageResult| aImageResult := self deepCopy. 0 to: self width do:[:x| 0 to: self height do:[:y| |aPoint aColorA aColorB| aPoint := (Point x: x y: y). aColorA := aImageResult colorAt: aPoint. aColorB := aImage colorAt: aPoint. aImageResult colorAt: aPoint put: aColorA + aColorB. ]]. ^ aImageResult —-> show: anTitle "Show a image in a window, scale the image to 500" |im| im := (ImageMorph withForm: (self scaledIntoFormOfSize:500) ). im withSnapshotBorder. im borderWidth: 5. im color: (Color gray). im openInWindowLabeled: (anTitle,' | mode: ', self mode asLowercase, '| ', self shape). -—> The first problem I found was the class Form return 'Form new' and not 'self class new' so I had to create two class method (in ImageForm): newFrom: aForm mode: aMode "create an ImageForm from to a Form object." | aImage| aImage := self new. aImage copyFrom: aForm. aImage mode: aMode. ^ aImage. —> open: aFileName “Open a image.” | aImage aForm| aForm := ImageReadWriter formFromFileNamed: aFileName. aImage := self newFrom: aForm mode: ‘ARGB’. ^ aImage. —> I think that the methods (+ and show) should be directly in the class Form but I didn't want to change the original. If you think it's okay, I can continue working and this week upload to github with their respective tests. P.S. sorry for my limited English. Best Regards Pablo. El 25 de ene. de 2020 12:10 -0300, Stéphane Ducasse <stephane.duca...@inria.fr>, escribió: > what I always find strange is that people do not invest in tests for domains > that are super nice to test…. > > S. > > > On 25 Jan 2020, at 16:04, Serge Stinckwich <serge.stinckw...@gmail.com> > > wrote: > > > > You may have a look to Cuis library : > > https://github.com/Cuis-Smalltalk/Numerics > > There is an image analysis package. > > We have some plan in PolyMath to port it: > > https://github.com/PolyMathOrg/PolyMath/issues/158 > > > > Best, > > > > > On Fri, Jan 24, 2020 at 11:20 PM Pablo Navarro <pablo...@gmail.com> wrote: > > > > > Hi everyone! > > > > > > > > > > I’m searching for one library for image processing in Pharo. I > > > > > couldn't find anything (only wrappers) so I tried programming one for > > > > > basic operations (sum, > > > > > subtraction) with images using class “Form”. > > > > > > > > > > What do you think about this? > > > > > > > > > > > > > > > For providing a context, I'm studying a PhD. in image processing, but > > > > > all of the operations that I do, do it in Python. I try using Pharo > > > > > for more fun :D. > > > > > > > > > > Best Regards Pablo. > > > > > > -- > > Serge Stinckwic > > h > > > > Int. Research Unit > > on Modelling/Simulation of Complex Systems (UMMISCO) > > Sorbonne University > > (SU) > > French National Research Institute for Sustainable Development (IRD) > > U > > niversity of Yaoundé I, Cameroon > > "Programs must be written for people to read, and only incidentally for > > machines to execute." > > https://twitter.com/SergeStinckwich > > > > -------------------------------------------- > Stéphane Ducasse > http://stephane.ducasse.free.fr / http://www.pharo.org > 03 59 35 87 52 > Assistant: Julie Jonas > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley, > Parc Scientifique de la Haute Borne, Bât.A, Park Plaza > Villeneuve d'Ascq 59650 > France >
