One of the cameras used by the system was found rotated by 45 degrees to the right. This caused all images captured by this camera to be rotated by 45 degrees. Rotate the images back about their center, copy the remarkable pixels (white backgro

旋转时钟，以16位发光二极管的旋转代替点阵的列扫描，实现字符和图像的显示 扫描键盘是4*4的按键扫描，为初始练习的小程序-Rotate the clock, to 16 replace the lattice rotation LED scanning the columns to achieve the character and display the scanned image is 4* 4 keyboard key scanning, small program to practi

此旋转LED共有16个LED组成，通过步进电机控制LED的旋转，由人的视觉暂留而形成图像，从而达到显示的效果。-This rotating LED composed of a total of 16 LEDs, the rotation of the LED is controlled by a stepping motor, and forming an image by the human visual persistence, so as to achieve the effect of

图像旋转与缩放的简单程序，适用于初学者的参考-Image rotation and zoom