I have images loaded with cv2 in python. After detecting the edges using cv2.Canny I want to draw boxes around the objects in the image. Give me an example in python.
user
Sure, here's an example code snippet in Python that should achieve what you are looking for:
```
import cv2

# Load the image
img = cv2.imread('path_to_image')

# Convert the image to grayscale
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

# Use Canny edge detection to detect the edges in the image
edges = cv2.Canny(gray, 100, 200)

# Find the contours in the image
contours, hierarchy = cv2.findContours(edges, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

# Loop over each contour in the image
for cnt in contours:
    # Get the bounding box of each contour
    x, y, w, h = cv2.boundingRect(cnt)
    
    # Draw a rectangle around the object
    cv2.rectangle(img, (x, y), (x + w, y + h), (0, 255, 0), 2)

# Display the final image with boxes around objects
cv2.imshow('image', img)
cv2.waitKey(0)
cv2.destroyAllWindows()
```

In this code snippet, we load the image and convert it to grayscale. We then use the Canny edge detection method to detect the edges in the image. Next, we find the contours in the image using the ```findContours``` function in cv2. Finally, we loop over each contour, get its bounding box, and draw a rectangle around the object using the rectangle function in cv2. The final image with boxes around objects is then displayed using ```imshow```.
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