Image compression is always a critical technology in the image area and is also a hotspot in research area.

图像压缩技术一直是图像处理领域的一门关键技术，也一直是研究的热点。

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Thus, it's necessary to separate the document image and then embed watermarking in character area and image area.

因此有必要对文档图像进行分割和分类，在文字区域和图像区域分别添加水印。

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The trait of this method is only processing little image area and avoiding vehicle tracking in 2-dimensional image space.

该方法的特点是处理运算的图像区域小，避开了在二维图像空间中进行车辆跟踪。

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The area where the original image was drawn will then attract the oily printer's ink.

VOA: special.2009.09.02

The smartphone also comes with an amazing 8 megapixel camera so you'll be able to take incredibly vivid pictures and the front-facing camera with ultra-wide-angle lens captures twice the image area to fit more in every shot.

ENGADGET: Windows Phone 8X, Galaxy S III Mini and Xperia J available on Three UK today

And for effortless image composition and image playback, the PENTAX X-5 also features a large tiltable 3.0-inch, high-definition LCD screen that offers sharp image viewing, even in bright sunlight, while allowing users to shoot from high and low angles to keep the subject neatly framed in the image area.

ENGADGET: Pentax intros X-5 superzoom camera with 26x lens, tiltable LCD

This makes possible two-handed gestures such as selecting an area of an image, rotating it or zooming in and out.

ECONOMIST: Computer interfaces