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【平头哥Sipeed LicheeRV 86开发板试用】fbviewer显示图片体验
概述
本次体验【平头哥Sipeed LicheeRV 86开发板试用】fbviewer显示图片功能。
fbviewer命令认识
不会用的命令,先help 下:
- root@MaixLinux:~# fbviewer -help
- Usage: fbviewer [options] image1 image2 image3 ...
- Available options:
- -h, --help Show this help
- -a, --alpha Use the alpha channel (if applicable)
- -c, --dontclear Do not clear the screen before and after displaying the image
- -u, --donthide Do not hide the cursor before and after displaying the image
- -i, --noinfo Supress image information
- -f, --stretch Strech (using a simple resizing routine) the image to fit onto screen if necessary
- -k, --colorstretch Strech (using a 'color average' resizing routine) the image to fit onto screen if necessary
- -e, --enlarge Enlarge the image to fit the whole screen if necessary
- -r, --ignore-aspect Ignore the image aspect while resizing
- -s <delay>, --delay <d> Slideshow, 'delay' is the slideshow delay in tenths of seconds.
- Input keys:
- r : Redraw the image
- < or , : Previous image
- > or . : Next image
- a, d, w, x : Pan the image
- f : Toggle resizing on/off
- k : Toggle resizing quality
- e : Toggle enlarging on/off
- i : Toggle respecting the image aspect on/off
- n : Rotate the image 90 degrees left
- m : Rotate the image 90 degrees right
- p : Disable all transformations
- **********************************************
复制代码
明白了,用法,来显示一张图片吧
- root@MaixLinux:~# fbviewer haoran.jpg -f
- fbv - The Framebuffer Viewer
- haoran.jpg
- 690 x 920
复制代码 命令解说:haoran.jpg 要显示的图片, -f 适应屏莫显示
显示效果如下:
可以输入命令,控制显示
r : Redraw the image 重绘图片
< or , : Previous image 上一张图片
> or . : Next image 下一张图片,如果输入参数为1,或显示到最后一张图片,则退出, (按Ctrl+c, 发现是无效的, 不能退出,以为是死机了)
a, d, w, x : Pan the image 移动图片
f : Toggle resizing on/off 缩放开关
k : Toggle resizing quality 原比例绽放
e : Toggle enlarging on/off 放大开关
i : Toggle respecting the image aspect on/off 拉伸到满屏显示
n : Rotate the image 90 degrees left 向左转90度
m : Rotate the image 90 degrees right 向右转90度
p : Disable all transformations 取消所有参数设置
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+10
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