The wave() function is an inbuilt function in the Python Wand ImageMagick library which is used to alter an image along with a sine wave. It creates a ripple effect.
Syntax:
wave(amplitude, wave_length, method)Parameters: This function accepts three parameters as mentioned above and defined below:
- Amplitude: This parameter stores the value of the amplitude of the sine wave.
- Wave_length: This parameter stores the value of the wavelength of the sine wave.
- method: This parameter is used to specify the value of method which takes pixel interpolation method as ‘undefined’, ‘average’, ‘average9’, ‘average16’, ‘background’, ‘bilinear’, ‘blend’, ‘catrom’, ‘integer’, ‘mesh’, ‘nearest’, ‘spline’
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 wave: # Invoke wave function with amplitude as 12, wavelength as 15 # method as 'bilinear' wave.wave(12, 15, 'bilinear') # Save the image wave.save(filename ='wave1.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 wave() function with amplitude as 10, wavelength as 10 # method as 'blend' pic.wave(10, 10, 'blend') # Save the image pic.save(filename ='wave2.jpg') |
Output:
