What image processing library can I use?

[Standa]

Hi,
I want help with choosing the right library. I need some drawing on the Form with possibility to load and save (as bitmap) a part of the screen (x1,y2,x2,y2).
I have downloaded "draw.zip" from this forum. It is good example for using ImageLib and ImageLibEx and this is what I want, but I can't find how to load and save only part of screen.

 

[derez]

Try this DZimage library http://www.b4x.com/forum/additional-libraries/1403-dzimage-library.html#post7804

you can use

ScreenCapture2(x,y,width,Height): Captures part of the screen.

or

CopyImage(sourceImage, x,y,width, height): Copies a part of an image.

and then Saveimage...

 

[klaus]

Hi Standa,

You can also use the ImageLibEx.
You need following objects for the partial image
a BitmapEx, DrawerEx and 2 RectEx objects
- bmpImage BitmapEx for the partial bitmap
- drwImage DrawerEx for the bitmap above
- rectSrc source rectangle for copying
- rectDest destination rectangle

Then with
drwImage.DrawImage(Form1.Image,rectSrc.Value,rectDest.Value)
bmpImage.SaveImage(FileName,"J")

What draw.zip did you download ? Did you have a look at this one: http://www.b4x.com/forum/share-your-creations/3945-draw-program-5.html

I wouldn't mix ImageLib and ImageLibEx, only use ImageLibEx.
ImageLibEx has all functionalities of ImageLib and much more!

Best regards.