Taking a look at SWT Images

Summary SWT's Image class can be used to display images in a GUI. The most common source of images is to load from a standard file format such as GIF, JPEG, PNG, or BMP. Some controls, including Buttons and TreeItems, are able to display an Image directly through the setImage(Image) method, but any control's paint event allows images to be drawn through the callback's graphic context. SWT's ImageD

[Kanasansoft]

swtで画像処理をする方法の詳解。英語だが画像が豊富なので参考になる。

[MasaGon]

SWT Imageクラスの使い方