If you want to create a new image file, you specify a new image file inside of the save() function. In this case, I created a new image file, examcover_rotated90.png. So, we'll have the original image, along with this newly created image file, which is rotated 90° counterclockwis...
270) #making rotation of 270 if arrow_key== "left": head_of_Snake = game.transform.rotate(image, 90) if arrow_key== "up": head_of_Snake = image #default if arrow_key== "down": head_of_Snake = game.transform.rotate(image, 180) DisplayScreen.blit(head...
rotatedRect1.center = (WINDOWWIDTH /2, WINDOWHEIGHT /2) DISPLAYSURF.blit(rotatedSurf1, rotatedRect1) rotatedSurf2 = pygame.transform.rotate(titleSurf2, degrees2) rotatedRect2 = rotatedSurf2.get_rect() rotatedRect2.center = (WINDOWWIDTH /2, WINDOWHEIGHT /2) DISPLAYSURF.blit(rotatedSurf...
第二个参数是要旋转 Surface 的角度。pygame.transform.rotate()函数不会改变你传递给它的 Surface 对象,而是返回一个新的 Surface 对象,上面绘制了旋转后的图像。 请注意,这个新的 Surface 对象可能会比原来的大,因为所有 Surface 对象都代表矩形区域,旋转后的 Surface 的角会超出原始 Surface 的宽度和高度。下面...
rotate_image.py #!/usr/bin/python from PIL import Image import sys try: tatras = Image.open("tatras.jpg") except IOError: print("Unable to load image") sys.exit(1) rotated = tatras.rotate(180) rotated.save('tatras_rotated.jpg') ...
调用 rotate()方法时,增加旋转角度,并计算旋转后新的眼睛位置和方向。 其中点(r cos(θ), r sin(θ))表示一个点,它在以原点为中心、半径为 r 的圆上,θ 是该点到原点的连线与 x 轴的夹角。转换中使用了 center,确保即使旋转中心不在原点,也能工作。
# Python program to explain cv2.rotate() method# importing cv2importcv2# pathpath =r'C:\Users\user\Desktop\geeks14.png'# Reading an image in default modesrc = cv2.imread(path)# Window name in which image is displayedwindow_name ='Image'# Using cv2.rotate() method# Using cv2.ROTATE_90...
We then apply the warpAffine function to the matrix returned by getRotationMatrix2D() function to obtain rotated image.Following program rotates the original image by 90 degrees without changing the dimensions −Exampleimport numpy as np import cv2 img = cv2.imread('OpenCV_Logo.png',1) h, ...
>>> car = pygame.image.load(‘car.png‘)>>> screen.blit(car, (50, 100))>>> pygame.display.flip()这时,图片car.png中的内容会显示在屏幕上,图片的左上角在屏幕上的坐标是(50, 100)。屏幕坐标的X轴从作往右的,Y轴是从上往下的。然后我们可以用如下语句来旋转图片:>>> rotated = pygame....
pip install scikit-image pip install h5py 作者使用的是theano训练的,训练好的模型文件要使用theano作为Keras的后端才能调用,在配置文件~/.keras/keras.json中(没有可创建)确认/修改backend为theano(如果没有安装tensorflow[Keras的另一可选后端]好像就不用管了),配置文件样式下文中卷积神经网络小节的补充里有。