求翻译：一幅光栅图像仅仅是一个包括很多单个象素的网格，每个象素在网格内都有一个可定义的水平和垂直位置。在大多数主要的图像编辑程序中，只要图上移动一种称为滴管（Eyedropper）的工具，就可获取任何一个象素的坐标位置。网格的物理尺寸由象素的总数和分辨率确定，它又去确定各象素的相对位置。是什么意思？

A raster image is only one, including many single-pixel grid, each pixel in the grid has a definable horizontal and vertical position. In most major image editing program, as long as the move the map a called a dropper (eyedropper) tool, you can obtain the coordinates of any pixel location. The phys

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A raster image is merely one including the very many single picture element grid, each picture element all has the level and the upright position in the grid which may define.In the majority main image editing procedure, only in the important map moves one kind to be called dropper (Eyedropper) the

A raster image is just a grid containing many individual pixels, each pixel in the grid has a definable in horizontal and vertical positions. In most major image editing program, as long as the move known as the eyedropper on the map (Eyedropper) tool, you can get any of the coordinates of the pixel

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