15 Mar Draw a text on an image with OpenCV
In OpenCV, use the cv2.putText() function to draw text on an image. First, we will read the image using the imread() function in OpenCV.
Let us now see the example:
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# Draw a text on an image import cv2 font = cv2.FONT_HERSHEY_SIMPLEX # Load an image image = cv2.imread(r'C:\Users\hp\Downloads\amit.jpeg', 1) # Define new dimensions (width, height) new_dimensions = (600, 600) # Resize the image resized_image = cv2.resize(image, new_dimensions) # Place text "Subscribe" on the image cv2.putText(resized_image ,'Subscribe',(230,510), font, 1,(0,0,255),3) # Display the resized image cv2.imshow("Image Resized:", resized_image) # Wait for a key press and close the window cv2.waitKey(0) cv2.destroyAllWindows() |
The following is the output. We have written a text āSubscribeā on the image:
Explanation:
This Python script uses the OpenCV library to load, resize, and add text to an image:
- It begins by importing the OpenCV library and setting a specific font style using
cv2.FONT_HERSHEY_SIMPLEX
. - The script then reads an image from the specified file path and loads it in color.
- The image is resized to dimensions of 600×600 pixels using the
cv2.resize()
function. - After resizing, the script places the text “Subscribe” on the image at coordinates (230, 510) using the
cv2.putText()
function. The arguments forcv2.putText()
include the image, the text, the coordinates, the font, the font scale (1), the color (red), and the thickness (3 pixels). - Finally, the script displays the resized image with the added text in a window titled “Image Resized:” using
cv2.imshow()
, waits for a key press withcv2.waitKey(0)
, and closes all OpenCV windows withcv2.destroyAllWindows()
. - This process allows users to view the modified image with the added text and close the display window at their convenience.
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