I'm trying to draw a circle in a picture using open CV with Python.
Here is the picture I wish I can make :
Here is the code I write :
import cv2
import numpy as np
import imutils
text1 = "10x"
text2 = "20gr"
# Load image in OpenCV
image = cv2.imread('Sasa.jfif')
resized = imutils.resize(image, width=500)
cv2.circle(resized,(350,150),65,(102,51,17),thickness=-1)
# Convert the image to RGB (OpenCV uses BGR)
cv2_im_rgb = cv2.cvtColor(resized,cv2.COLOR_BGR2RGB)
# Pass the image to PIL
pil_im = Image.fromarray(cv2_im_rgb)
draw = ImageDraw.Draw(pil_im)
# use a truetype font
font1 = ImageFont.truetype("arial.ttf", 50)
font2 = ImageFont.truetype("arial.ttf", 25)
# Draw the text
draw.text((310,110), text1, font=font1)
draw.text((325,170), text2, font=font2)
# Get back the image to OpenCV
cv2_im_processed = cv2.cvtColor(np.array(pil_im), cv2.COLOR_RGB2BGR)
cv2.imshow('Fonts', cv2_im_processed)
cv2.waitKey(1)
But this is what my code generate :
The circle line is not precise. Is there anything I can do to make the line preciser or is there any other library that generates circle with precise line ?
Any suggestion will be very appreciated !
CodePudding user response:
You can use anti aliasing to make the circle look better as described here:
cv2.circle(resized,(350,150),65,(102,51,17),thickness=-1,lineType=cv2.LINE_AA)