raspberry pi

最大可以显示800*480像素大小的六色图片。

1.可以画点、线、矩形、圆形等一些简单几何图形的绘制（支持多种颜色，图形内部可选择填充颜色）。
2.可以显示英文、数字字符，提供多种大小的字符。
3.可以直接从指定文件夹下读取图片信息（且支持bmp，jpg，png，gif，tif等多种格式）
4.对读取的图片大小没有要求，例程会自动转换。
5.用户可以对读取的图片进行90度、180度、270度旋转操作。
6.在raspberry pi例程中使用了抖动算法进行颜色转换，用户可以直接导入bmp，jpg，png，gif，tif等多种格式的图片。
特别提示，
如果你觉得我们提供的颜色转换函数效果不好，请按照用户使用手册上的图片处理步骤自行转换。






It can display six-color pictures with a maximum size of 800*480 pixels.

1. You can draw some simple geometric figures such as points, lines, rectangles, circles, etc. 
     (supports multiple colors, and the fill color can be selected inside the figure).
2. Can display English and numeric characters, providing characters of various sizes.
3. Picture information can be read directly from the specified folder (and supports bmp, jpg, png, gif, tif and other formats)
4. There is no requirement for the size of the image to be read, and the routine will automatically convert it.
5. Users can rotate the read pictures 90 degrees, 180 degrees, and 270 degrees.
6. The dithering algorithm is used in the raspberry pi routine for color conversion. 
    Users can directly import pictures in various formats such as bmp, jpg, png, gif, tif, etc.
Special Note,
If you feel that the color conversion function we provide is not effective, 
please follow the image processing steps in the user manual to convert it yourself.