Resize and Crop

[contoystudio]

Hi,
I'd like to know if exist a library/class that permit to crop/resize an image through given proportions. Something like android does when we change background in the homescreen.

Thank you in advance

 

[klaus]

What exactly do you want to do and what application are you refering to ?

 

[Douglas Farias]

for example i can move the crop to negative sizes
have a way to set minimal value in % ?

for exemple if rect is 20%x cant move - 20% it
have a big bug when u make a small crop *-*

i need set minimal rect is
left 10%x
right 90%x
top 10%y
bottom 90%y

user can change this size to < value only to >

 

[klaus]

You must be more precise in your questions !
Again, what application are you refering to ?
Do you already have some code ?
General answer:
If you define the width or height of the crop rectangle anywhere in your program limit their values, max or min.

 

[Douglas Farias]

http://www.b4x.com/android/forum/threads/resize-and-crop.19550/#post-113705

http://www.b4x.com/android/forum/threads/resize-and-crop.19550/#post-113884

here is your example *-*-* xD

can help me set a minimal rectangle ?

 

[klaus]

Try it on your own and then if you have trouble ask again.
Me too I would need to go back to the example, modifying, trying and testing it .

 

[klaus]

Attached you find a modified version with min width and height.
The original examples above croped to a square (the original request), the project below crops a rectangle.
A more recent version ResizeAndCrop5 includes get the croped image and save it.

 

[Douglas Farias]

@klaus hi man
how its possible clean the canvas to save another image witout zoom?

when you press a button to save the image this save the image and make a zoom in the image its possible remove this zoom later file save?

what i need clean to remove this? canvas?

 

[Douglas Farias]

ops is from @vb1992 the code with save crop button *-*

 

[TomDuncan]

Will this work with b4j as well?
Tom

 

[klaus]

I don't know, I have no experience in B4J.

 

[iCAB]

Hi Guys

How to extract the image under the crop rectangle

 

[klaus]

Here you are.
The new version gets the croped image and can save it
Attached a modified version.

The latest version is HERE.

 

[iCAB]

Here you are.
The new version gets the croped image and can save it
Attached a modified version.

Thanks a lot for your help