Imageio is a Python library that provides an easy interface to read and write a wide range of image data including animated images, volumetric data, and scientific formats. Make to use this tag for question related to it.
Questions tagged [python-imageio]
191 questions
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"float" object cannot be interpreted as an integer while reading the frame
I am trying to read the frames using imageio API. I have a reader as an object which I have received using imageio.get_reader(video_path,"ffmpeg").
I have the following frame reader function
def read_frames(reader, frame_q, use_webcam):
if…
Sam
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Reading all images(jpg) from a folder by using imageio.readvol()
I can read all the *.dcm files from "imgs" with this command
vol = imageio.volread("imgs")
but I can't read jpg files. My image files has *.bmp.jpg extension (e.g. C001_IMG00023.bmp.jpg) and
histology = imageio.volread("imgs", "jpg")
command gave…
Yunus YILDIRIM
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Reading image files
I have a directory containing 4 folder (1,2,3,4). Each folder has jpg images in them. I used the code below to read the images. The problem is all images are in different shapes. So, now I have a list of images each with different shape.
1) Is…
Abid Orucov
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2 answers
How to ignore root warnings?
I generate monochromatic images and save them using imageio.imwrite. Every time I save a file I get a following warning:
WARNING:root:Lossy conversion from float64 to uint8. Range [-0.24890179009891278, 2.35786261304524]. Convert image to uint8…
Fallen Apart
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2 answers
JPEG-Decompression on RAW image in python
When I try to JPEG-Decompress (old-style JPEG compression, not JPEG-LS and not JPEG2000) the RAW data, I get following error:
Traceback (most recent call last):
File "raw-reader.py", line 766, in
raw_image_data =…
Ian Rehwinkel
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3 answers
Read multiple images from same directory with imageio
I have a directory test/ with images 0.jpg, and 1.jpg. How can I use imageio's mimread function to specify the directory test and read both 0 and 1? Or is this not what it's meant for?
I tried imageio.mimread(uri="/path/to/test/", format=".jpg") but…
jjjjjj
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install imageio Python 2.7.14
I am trying to install the imageio module using pip:
pip install imageio
as this is what https://media.readthedocs.org/pdf/imageio/latest/imageio.pdf recommends.
However, I am getting an error every time saying that install is invalid syntax. I…
Dave Miyamoto
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2 answers
How to remove normalization from scipy imsave function
I have a simple task to accomplish, but the current save functions I am finding are not helping me at all. What I have to do is simply convert a gray-scale image to another one which has intensities belonging to a smaller interval (specifically…
Alan Ricardo
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Read an image using url imageio python
Can anyone tell how to read an image using an URL given, with the help of imageio python3?
I have already looked at this stackoverflow question but is it possible to use imageio instead of PIL.
Akash Chandra
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1 answer
(imageio or celery) Error closing: 'Image' object has no attribute 'fp'
I am using imageio to write png images to file.
import numpy as np
import matplotlib.cm as cm
import imageio # for saving the image
import matplotlib as mpl
hm_colors = ['blue', 'white','red']
cmap =…
Liis Kolberg
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1 answer
Using FreeImage convert hdr to jpg
How can I use ImageIO's FreeImage to convert and hdr to a jpeg image?
I've written a function that takes and EXR and converts it to a jpg and the results looks like this:
So I'm stumped on how to take an HDR and convert it to a jpg with similar…
JokerMartini
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Why does Python crash when my PyQt window becomes inactive/is resized?
While playing around with different ways to show a webcam feed (obtained using imageio/ffmpeg) in a PyQt4 window, I stumbled upon this answer. After implementing this in Python 2.7 as an ImageDisplayWidget class (as summarized below), everything…
djvg
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How to quickly iterate over and modify pixel arrays with numpy?
First off, i am relatively new to Python and its libraries.
The purpose of the following code is to convert a HDR image to RGBM as detailed in WebGL Insights Chapter 16.
import argparse
import numpy
import imageio
import math
# Parse…
tomfulghum
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1 answer
Python's imageio module doesn't return more than one frame
I've the following code about the imageio Python library, which loads 2 images I have from the current folder, replaces all the colors > 200 with 0 (making it darker), and then printing the result to a new .gif image:
import imageio
import numpy as…
Madno
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1 answer
Speed up existing Gif with Imageio Python
I am looking to speed up the gif I made with Imageio in python. I do not have the images that i used to make gif but I do have the gif.
I cannot find suitable source for this in imageio documentation or anywhere online. Can you suggest me…
jkhadka
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