Hi all,
I have a question which is not directly related to Sanselan and for that
I apologize. However, the question is "imaging related" and I do use
Sanselan for reading metadata :)
(by the way, would thumbnail creation fit well as a feature in Sanselan?)
I am developing a photo manager and I have some issues with the creation
of thumbnails. It takes a very long time to generate them. I use Java
standard stuff (ImageIO) to do a scaled down version of the image this so:
Image scaledImage =
originalImage.getScaledInstance(clip.width, clip.height,
Image.SCALE_SMOOTH);
Then, if the image requires a rotation, I then use Graphics2D.drawImage
with an AffineTransform like this:
AffineTransform transform = new AffineTransform();
// prepare the rotation transform ...
thumbnailImage = new BufferedImage(thumbWidth, thumbHeight,
BufferedImage.TYPE_INT_RGB);
thumbnailImage.createGraphics().drawImage(scaledImage,
transform, null);
This takes a LONG time... I run it on a weak computer so it's
understandable to some extent but other imaging softwares prepare
thumbnails many times faster so I must be doing something wrong here...
Any ideas or suggestions?
Thanks!
Math
