how to create color detector from photo picture

[zahiraya]

i just wonder , can the app inventer detect color (almost color) or pixel value from photo or image 

regards

M Yanto

[Enis]

You have to do it yourself, in block code, pixel by pixel...

[zahiraya]

any tutorial ?

[Taifun]

what about the documentation?

http://ai2.appinventor.mit.edu/reference/components/animation.html#Canvas

number GetBackgroundPixelColor(number x, number y)

Gets the color of the specified point. This includes the background and any drawn points, lines, or circles but not sprites.

number GetPixelColor(number x, number y)

Gets the color of the specified point.

first do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the

 Top 5 Tips: How to learn  App Inventor

Taifun

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Trying to push the limits of App Inventor! Snippets and Tutorials from Pura Vida Apps by Taifun.