The wavelet_denoise() function is an inbuilt function in the Python Wand ImageMagick library which is used to remove noise by applying a wavelet transform.
Syntax:
wavelet_denoise(threshold, softness)Parameters: This function accepts two parameters as mentioned above and defined below:
- Threshold: This parameter stores the value of the smoothing limit.
- Softness: This parameter stores the value of the amount of attenuation of the smoothing threshold..
Return Value: This function returns the Wand ImageMagick object.
Original Image:
Example 1:
Python3
# Import library from Image from wand.image import Image# Import the imagewith Image(filename ='../neveropen.png') as image: # Clone the image in order to process with image.clone() as wavelet_denoise: # Invoke wavelet_denoise function with threshold as 10 # softness as 15 wavelet_denoise.wavelet_denoise(10, 15) # Save the image wavelet_denoise.save(filename ='wavelet_denoise1.jpg') |
Output:
Example 2:
Python3
# Import libraries from the wand from wand.image import Imagefrom wand.drawing import Drawingfrom wand.color import Colorwith Drawing() as draw: # Set Stroke color the circle to black draw.stroke_color = Color('black') # Set Width of the circle to 2 draw.stroke_width = 1 # Set the fill color to 'White (# FFFFFF)' draw.fill_color = Color('white') # Invoke Circle function with center at 50, 50 and radius 25 draw.circle((200, 200), # Center point (100, 100)) # Perimeter point # Set the font style draw.font = '../Helvetica.ttf' # Set the font size draw.font_size = 30 with Image(width = 400, height = 400, background = Color('# 45ff33')) as pic: # Set the text and its location draw.text(int(pic.width / 3), int(pic.height / 2), 'GeeksForGeeks !') # Draw the picture draw(pic) # Invoke wavelet_denoise function with threshold as 20 # softness as 10 pic.wavelet_denoise(20, 10) # Save the image pic.save(filename ='wavelet_denoise2.jpg') |
Output:
