# draw the filled circle on input image cv2.circle(imageFilledCircle, circle_center, radius, (255, 0, 0), thickness=-1, lineType=cv2.LINE_AA) # display the output image cv2.imshow('Image with Filled Circle',imageFilledCircle) cv2.waitKey(0) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10...
gray=cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)# Find the edgesinthe image using canny detector edges=cv2.Canny(gray,50,200)# Detect points that form a line lines=cv2.HoughLinesP(edges,1,np.pi/180,max_slider,minLineLength=10,maxLineGap=250)# Draw lines on the imageforlineinlines:x1,y1,x2,...
最后,调用imshow方法显示结果。 4. 类图展示 为了更好地理解代码的结构,下面的类图展示了使用OpenCV绘图的逻辑: usesCvImage+read(filename)+line(start_point, end_point, color, thickness)+imshow(window_name, image)+waitKey(delay)+destroyAllWindows()Trajectory+points+draw() 5. 进一步扩展 上面代码实现了...
importImage, ImageDraw im= Image.open("lena.pgm")#Creates an object that can be used to draw in the given image.draw =ImageDraw.Draw(im)#draw.line(xy, options) => Draws a line between the coordinates in the xy list.#The coordinate list can be any sequence object containing either 2...
im = Image.open(“vacation.jpeg") drawSurface = ImageDraw.Draw(im) 基本绘画操作Basic methods of drawing surface 弧/弦/扇形 chord arc pieslice (bbox, strtAng, endAng) 椭圆ellipse (bbox) 线段/多段线 line (L) draw.line(((60,60),(90,60), (90,90), (60,90), (60,60))) #draw...
在本节中,我们将演示如何使用 scikit image 的形态学模块中的函数来实现一些形态学操作,首先对二值图像进行形态学操作,然后对灰度图像进行形态学操作。 二进制运算 让我们从二值图像的形态学操作开始。在调用函数之前,我们需要创建一个二进制输入图像(例如,使用具有固定阈值的简单阈值)。 腐蚀 侵蚀是一种基本的形态...
class Draw: def __init__(self,image_path): #初始化参数 self.drawing = False self.last_x, self.last_y = 0, 0 self.line_coordinates = [] # 获取屏幕尺寸 self.screen_width = win32api.GetSystemMetrics(0) self.screen_height = win32api.GetSystemMetrics(1) ...
'width' : 1, 'with_labels' : False, 'cmap' : plt.cm.coolwarm } nx.draw(G, *...
drawSurface = ImageDraw.Draw(im) 基本绘画操作Basic methods of drawing surface 弧/弦/扇形 chord arc pieslice (bbox, strtAng, endAng) 椭圆ellipse (bbox) 线段/多段线 line (L) draw.line(((60,60),(90,60), (90,90), (60,90), (60,60))) #draw a square ...
>>> draw.line((0,im01.size[1], im.size[0], 0), fill = 128) >>> im01.show() >>> del draw 在图像01上绘制了两条灰色的对角线,如下图: 三、ImageDraw模块的方法 1、 Arc 定义:draw.arc(xy, start, end, options) 含义:在给定的区域内,在开始和结束角度之间绘制一条弧(圆的一部分)。