For example, I have 100 pictures whose resolution is the same, and I want to merge them into one picture. For the final picture, the RGB value of each pixel is the average of the 100 pictures’ at that position. I know the getdata function can work in this situation, but is there a simpler and faster way…
Tag: image
Why does Tkinter image not show up if created in a function?
This code works: It shows me the image. Now, this code compiles but it doesn’t show me the image, and I don’t know why, because it’s the same code, in a class: Answer The variable photo is a local variable which gets garbage collected after the class is instantiated. Save a reference to the …
Converting BLOB, stored on a database, to an image on an HTML website
This is my first question. I am having users upload their own image to a database. That image is stored as a BLOB. I was able to do this successfully. I am using MySQL for the database. The part I am having trouble with is displaying that BLOB as an image on the website when its called upon. Right now
Can you “stream” images to ffmpeg to construct a video, instead of saving them to disk?
My work recently involves programmatically making videos. In python, the typical workflow looks something like this: This workflow creates an image for each frame in the video and saves it to disk. After all images have been saved, ffmpeg is called to construct a video from all of the images. Saving the image…
Get Image File Size From Base64 String
I’m working on a python web service. It calls another web service to change the picture of a profile. It connects to another web service. This web service can only accept pictures that are 4 MB or smaller. I will put the checking in the first web service. It uses PIL to check if the base64 string is a v…
Creating a PNG file in Python
I have an application where I would like to be able to generate PNG images from data in Python. I’ve done some searching and found “PIL” which looked pretty outdated. Is there some other library that would be better for this? Thanks, Answer Is there some other library that would be better fo…
How to merge a transparent png image with another image using PIL
I have a transparent png image foo.png and I’ve opened another image with: Now what I need is to merge foo.png with foo2.png. (foo.png contains some text and I want to print that text on foo2.png) Answer First parameter to .paste() is the image to paste. Second are coordinates, and the secret sauce is t…
Python: The _imagingft C module is not installed
I’ve tried lots of solution that posted on the net, they don’t work. So the system can find the _imaging but still can’t use truetype font Raises this error: Answer Your installed PIL was compiled without libfreetype. You can get precompiled installer of PIL (compiled with libfreetype) here …
How to check dimensions of all images in a directory using python?
I need to check the dimensions of images in a directory. Currently it has ~700 images. I just need to check the sizes, and if the size does not match a given dimension, it will be moved to a different folder. How do I get started? Answer You can use the Python Imaging Library (aka PIL) to read the image
How to use PIL to make all white pixels transparent?
I’m trying to make all white pixels transparent using the Python Image Library. (I’m a C hacker trying to learn python so be gentle) I’ve got the conversion working (at least the pixel values look correct) but I can’t figure out how to convert the list into a buffer to re-create the im…