我有一段代码可以在图像上绘制物体的轮廓,然后在它们周围绘制一个矩形。我需要找到我的形状中最宽的直线(两个点)是哪个方向的。现在,我需要找到在对象边界内的像素的坐标点。
以下是我的代码:
以下是我的代码:
![Picture for Reference](https://istack.dev59.com/8hQii.webp)
class App:
def __init__(self, window, window_title, image_path="ex.jpg"):
self.window = window
self.window.title(window_title)
# Load an image using OpenCV
self.cv_img = cv2.cvtColor(cv2.imread(image_path), cv2.COLOR_BGR2RGB)
# Get the image dimensions (OpenCV stores image data as NumPy ndarray)
self.height, self.width, no_channels = self.cv_img.shape
# Create a canvas that can fit the above image
self.canvas = tkinter.Canvas(window, width = self.width, height = self.height)
self.canvas.pack()
# Use PIL (Pillow) to convert the NumPy ndarray to a PhotoImage
self.photo = PIL.ImageTk.PhotoImage(image = PIL.Image.fromarray(self.cv_img))
# Add a PhotoImage to the Canvas
self.canvas.create_image(0, 0, image=self.photo, anchor=tkinter.NW)
# Button that lets the user blur the image
self.btn_blur=tkinter.Button(window, text="Blur", width=25, command=self.blur_image)
self.btn_blur.pack(anchor=tkinter.CENTER, expand=True)
# Button that lets the user edeged the image
self.btn_blur=tkinter.Button(window, text="edged", width=25, command=self.edged_image)
self.btn_blur.pack(anchor=tkinter.CENTER, expand=True)
# Button that lets the user edeged the image
self.btn_blur=tkinter.Button(window, text="draw box", width=25, command=self.draw_box)
self.btn_blur.pack(anchor=tkinter.CENTER, expand=True)
self.window.mainloop()
# Callback for the "Blur" button
def blur_image(self):
self.cv_img = cv2.blur(self.cv_img, (3, 3))
self.photo = PIL.ImageTk.PhotoImage(image = PIL.Image.fromarray(self.cv_img))
self.canvas.create_image(0, 0, image=self.photo, anchor=tkinter.NW)
# Callback for the "edged" button
def edged_image(self):
#edeged image
self.cv_img=cv2.Canny(self.cv_img,50,180)
self.cv_img = cv2.dilate(self.cv_img, None, iterations=1)
self.cv_img = cv2.erode(self.cv_img, None, iterations=1)
self.photo = PIL.ImageTk.PhotoImage(image = PIL.Image.fromarray(self.cv_img))
self.canvas.create_image(0, 0, image=self.photo, anchor=tkinter.NW)
# Callback for the "draw contours" button
def draw_box(self):
#draw contour
cnts = cv2.findContours(self.cv_img.copy(), cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)
cnts = cnts[0] if imutils.is_cv2() else cnts[1]
#draw box
for c in cnts:
self.cv_img = cv2.drawContours(self.cv_img, [c], 0, (0,255,0), 3)
x,y,w,h = cv2.boundingRect(c)
self.cv_img = cv2.rectangle(self.cv_img,(x,y),(x+w,y+h),(0,255,0),2)
#Create a window and pass it to the Application object
App(tkinter.Tk(), "morteza app")