2012年7月28日 · Below is some pretty nice code that will add transparent corners. It works like this: Draws a circle with radius, rad, using draw.ellipse() Create an image for the alpha channel the same size as your image; Chop our circle into four pieces (the rounded corners), and place them in the correct corners of the alpha image

2019年2月19日 · This is part of the image i'm getting: but I don't need the black background as the original logo is transparent. Sorry had to crop out the logo! And if it helps, here is a print of the array passed to add_logo, it's a numpy array: [[3505 3514 3606 ... 4622 4781 0] [3566 3507 3503 ... 4587 4386 0] [3522 3503 3453 ... 4584 4434 0] ...

2016年12月1日 · You need to open the transparent png image using the flag IMREAD_UNCHANGED. Mat overlay = cv::imread("dice.png", IMREAD_UNCHANGED); Then split the channels, group the RGB and use the transparent channel as an mask, do like that: /** * @brief Draws a transparent image over a frame Mat.

Like I said, putalpha modifies all pixels by setting their alpha value, so fully transparent pixels become only partially transparent. The code I posted above first sets ( putalpha ) all pixels to semi-transparent in a copy, then copies ( paste ) all pixels to the original image using the original alpha values as a mask.

2023年5月29日 · Here is one way to do that in Python/OpenCV. Read the background (water) image and get its shape; Read the foreground (bag) image and get its shape; Separate the bag's BGR channels and its alpha channel; Extend the bag BGR image with transparent black as a mask - insert the bag at the center of the water inside black the size of the water image

2013年12月27日 · I am using Pylab . alpha=0 works , it gives me a transparent line . thanks Sivatumma . alpha=0.5 doesn't work though . Sorry M4rtini it gives me a light blue line . Actually that's what i tried initially as i've seen a few people mention it elsewhere but it doesn't work for me for some reason .

2013年11月25日 · If you want the output in GIF then you need to use the paste function instead of putalpha:. from PIL import Image, ImageOps, ImageDraw size = (128, 128) mask = Image.new('L', size, 255) draw = ImageDraw.Draw(mask) draw.ellipse((0, 0) + size, fill=0) im = Image.open('image.jpg') output = ImageOps.fit(im, mask.size, centering=(0.5, 0.5)) …

2018年6月21日 · How can I make watermark image transparent? For example, 60% transparent. I have tried with putalpha but seems that it's doesn't work as expected from PIL import Image temp_image = Image.open('te...

Here is a solution for macOS:. import tkinter as tk root = tk.Tk() # Hide the root window drag bar and close button root.overrideredirect(True) # Make the root window always on top root.wm_attributes("-topmost", True) # Turn off the window shadow root.wm_attributes("-transparent", True) # Set the root window background color to a transparent color …

2015年7月22日 · If you are using tkinter, you can use Python 3: tkinter.iconbitmap(yourIconFilePath) Python 2: Tkinter.iconbitmap(yourIconFilePath) NOTE: Icon files have the *.ico extension Share