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
0
votes
1 answer
Why is the last frame always excluded, when converting images into a video?
I have a folder with 225 pictures of maps. So, I compiled it to an mp4 file using imageio. Whether it's compiling 10 maps, 150, or all 225, the last picture is always not included in the video.
import os
from natsort import humansorted
import…
BallpenMan
- 185
- 1
- 12
0
votes
0 answers
my gif constructor code is too slow matplotlib
I am doing my final thesis and I need to create some gifs for a lot of different systems, the problem is that my code is REALLY slow and I need a way to increase the speed, I'm using imageio to do it
fig,ax=plt.subplots()
plt.title("Variacion…
DaniDm
- 3
- 2
0
votes
2 answers
too many values to unpack (while reading image's shape)
I am trying to run this code snippet:
from scipy.stats import wasserstein_distance
from imageio import imread
import numpy as np
def get_histogram(img):
h, w = img.shape
hist = [0.0] * 256
for i in range(h):
for j in range(w):
…
x89
- 2,798
- 5
- 46
- 110
0
votes
1 answer
RuntimeError: Frame is 0 bytes, but expected 691200
Running the code in google colab to detect object in a video but following error occurred:
RuntimeError Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/imageio/plugins/ffmpeg.py in…
Suraj Goswami
- 11
- 4
0
votes
1 answer
How to handle "ValueError: Could not find a format to read the specified file in single-image mode"?
Source code link: https://github.com/rndbrtrnd/udacity-deep-learning/blob/master/1_notmnist.ipynb
I am working with some of the existing code already written to read image's data as part of deep-learning course using ndimage.imread which is…
Kasid Khan
- 639
- 2
- 8
- 23
0
votes
2 answers
Pipe numpy array to virtual video device
I want to pipe images to a virtual video device (e.g. /dev/video0), the images are created inside a loop with the desired frame rate.
In this minimal example i only two arrays which alternate in the cv2 window. Now i look for a good solution to pipe…
sre
- 31
- 5
0
votes
1 answer
how to convert a nift folder to png images?
*library
there is a mostly known library imported from NumPy and imageio
import NumPy as np
import os
import nibabel as nib
import imageio
// method where I have I write code to convert a nift to png
Method
convert a nift(.nii) image to png…
Sir Mayur
- 1
- 1
- 1
0
votes
2 answers
Inverting Colors in an Image using ImageIO
I'm currently trying to write a function that inverts an image using ImageIO and no loops but I'm having a hard time. This is the code I have so far:
def inverted_color(img):
img = imageio.imread(img)
print(img.shape)
img =…
ppboi
- 13
- 4
0
votes
1 answer
Unable to download 'libfreeimage-3.16.0-osx10.6.dylib' using imageio.plugins.freeimage.download()
I am trying to read *.hdr image using imageio python library. I am using the free image plugin for imageio in order to do this.
imageio.plugins.freeimage.download()
However I get the following error even though I am connected to the…
0
votes
1 answer
Image not showing properly when reading the image using PIL instead of imagio library
I have this code that converts an image from RGB space to HSI space:
import numpy as np
import imageio
from matplotlib import pyplot as plt
def RGB_TO_HSI(img):
with np.errstate(divide='ignore', invalid='ignore'):
rgb =…
Omar AlSuwaidi
- 1,187
- 2
- 6
- 26
0
votes
1 answer
How to animate just the last six newest images as a GIF?
I need to create a GIF from the last seven newest images from a directory. The directory is constantly updating and adding new images every 10 minutes, so I already could make the code to create the GIF including all the files in the directory, but…
dchaco95
- 5
- 4
0
votes
1 answer
imageio(imsave) ValueError: Max value == min value, ambiguous given dtype
I want to change the images in format .nii into .png but I get this error from the function imageio.imsave:
ValueError: Max value == min value, ambiguous given dtype
Here is a part of the code:
import numpy, shutil, os, nibabel
import sys,…
Amir
- 1
0
votes
1 answer
Why does imageio.imread sometimes return an `imageio.core.util.Array` instead of a numpy array?
In the docs for imageio it says that imageio.imread returns a numpy array. This has been my experience most of the time, but sometimes it returns an imageio.core.util.Array object. imageio.core.util.array is only mentioned once in the imageio…
jss367
- 4,759
- 14
- 54
- 76
0
votes
1 answer
python imageio.get_reader() returns format error
import imageio
reader = imageio.get_reader("./t.mp4")
As shown above, with python 3.6.10, it returns:
>>> reader = imageio.get_reader("../")
Traceback (most recent call last):
File "", line 1, in
File…
tristan_jia
- 93
- 1
- 1
- 9
0
votes
1 answer
Py: imageio.imread vs scipy.misc.imread
So, i have a script that should convert a number into an array that i can feed into my AI. But a book that I am using for that tells me, to do so:
img_array = scipy.misc.imread("picofannumber.png", flatten = True)
img_data = 255.0 -…
Heatsreef
- 113
- 1
- 1
- 8