(h, w) = image.shape[:2] (cX, cY) = (w // 2, h // 2) # grab the rotation matrix (applying the negative of the # angle to rotate clockwise), then grab the sine and cosine # (i.e., the rotation components of the matrix) # -angle位置参数为角度参数负值表示顺时针旋转; 1.0...
trans_type: a string within ["move", "flip_vertical", "flip_horizontal", "rotate"] params_list: put the dx/dy or rotate angle into this list Returns: processd image """ # if not isinstance(image, np.ndarray): raise ValueError("desire np.ndarray but input is: {}".format(image.__...
the rotation center :param point: tuple of coordinates, points to rotate :param angle: degrees of rotation :param row: row size of the image :return: rotated coordinates of point """ x1, y1 = point x2, y2 = origin y1 = row - y1 y2 = ...
3、旋转 rotate skimage.transform.rotate(image, angle[, ...],resize=False) angle参数是个float类型数,表示旋转的度数 resize用于控制在旋转时,是否改变大小 ,默认为False fromskimageimporttransform,dataimportmatplotlib.pyplot as plt img=data.camera()print(img.shape)#图片原始大小img1=transform.rotate(img,...
pythontranslation.py--imagetrip.jpg 显示如下: 旋转 创建python脚本rotation.py,并输入以下内容: # 导入库importnumpyasnpimportargparseimportcv2# 定义旋转rotate函数defrotate(image,angle,center=None,scale=1.0):# 获取图像尺寸(h,w)=image.shape[:2]# 若未指定旋转中心,则将图像中心设为旋转中心ifcenterisNo...
cv2.imshow("rotate", img270) cv2.waitKey(0) 旋转任意角度,以任意色值填充背景 import cv2 from math import * import numpy as np # 旋转angle角度,缺失背景白色(255, 255, 255)填充 def rotate_bound_white_bg(image, angle): # grab the dimensions of the image and then determine the ...
更新: def rotate_bound_white_bg(image, angle): (h, w) = image.shape[:2] (cX, cY) = (w // 2, h // 2) # -angle位置参数为角度参数负值表示顺时...
logoim = Image.open(logo_path) bw, bh = baseim.size lw, lh = logoim.size baseim.paste(logoim, (bw-lw, bh-lh)) baseim.save('test3.jpg', 'JPEG') print u'logo水印组合成功' def text_watermark(img, text, out_file="test4.jpg", angle=23, opacity=0.50): ...
save("output Image/rotated_image.jpg") open_rotated_image = Image.open("output Image/rotated_image.jpg") open_rotated_image.show() OutputExampleIn this example we are using the transpose() method to flip the input image by horizontally.from PIL import Image #Open an image image = ...
3、旋转rotate 4、图像金字塔 八、对比度与亮度调整 1、gamma调整 2、log对数调整 3、判断图像对比度是否偏低 4、调整强度 九、直方图与均衡化 1、计算直方图 2、绘制直方图 3、彩色图片三通道直方图 4、直方图均衡化 十、CLAHE 三、各种imread函数的区别与联系 ...