Java Development

[rizinbox]

hi Guys,

I want to reduce my image size.

on BBM when we send the image there are three to four option come. like 

original  1024 x 768    size = 140.5kb

Medium 800 x 600      size = 85.8 kb

Small     640 x 480size = 54.9 kb

But whe i Try to resize image I did'nt get exact or near reslut of BBM.  

I try EncodedImage.scaleImage32(640,480)

Also try this function

public Bitmap setsizeImage(EncodedImage image, int width, 
    		  int height) {
    		  EncodedImage result = null;

    		  int currentWidthFixed32 = Fixed32.toFP(image.getWidth());
    		  int currentHeightFixed32 = Fixed32.toFP(image.getHeight());

    		  int requiredWidthFixed32 = Fixed32.toFP(width);
    		  int requiredHeightFixed32 = Fixed32.toFP(height);

    		  int scaleXFixed32 = Fixed32.div(currentWidthFixed32,
    		    requiredWidthFixed32);
    		  int scaleYFixed32 = Fixed32.div(currentHeightFixed32,
    		    requiredHeightFixed32);

    		  result = image.scaleImage32(scaleXFixed32, scaleYFixed32);
    		  return result.getBitmap();
    		 }

I scale the image on 200,200  but size become 180 kb of 331

But BBM reducing more with large scale.

plz help me if anybody now about it.

[hardikhamar]

can u post ur code?

and also tell about  version 

[dnepr]

Try scaleInto call, see if that helps.

http://docs.blackberry.com/en/developers/deliverables/11945/Bitmap_scaling_787507_11.jsp

[rizinbox]

thanks for reply.

I Try bitmap scaleInto.. but its not reducing size of image. it is doing scale well.

But I also want to reduce the image file size.

[dnepr]

Not sure if BBM does this, try converting it to a JPEG and playing with different quality of JPEG.

That should reduce the size considerably, if JPEG is acceptable for you.

[rizinbox]

yes Jpeg is acceptable even I am doing with jpeg. I am also thinking how BBM is doing. I use JPEGEncodedImage, EncodedImage, PNGEncoder but all these techniques work with scale well. but when i convert large scale image to smal it should be decrease size. ex

I have image of 331 kb 1900 x 1200
when i scale it in 640 x 480 file size become 700+ kb but scale working well.
if image size is 2MB then also its converting size 7 to 800 kb.

But BBM is reducing image file size very well

[rizinbox]

any one?

[rizinbox]

plz help me still facing this problem