Questions tagged [rawpy]
8 questions
2
votes
2 answers
Reading raw image files inside the map method of tensorflow using Rawpy
I am trying to load various raw (AWR) images inside a TF dataset for training a model. Basically, I initially had 2 lists:
im1: This has the image file paths that will be input to the model.
im2: This is the expected output.
I am creating the…
rohan843
- 109
- 5
2
votes
1 answer
Image too big for processing when converting large (1.3 GB) DNG file to PNG using python
I need to convert a DNG file to PNG using python. I found a post here how to convert DNG: Opencv Python open dng format
The code I tried:
#open dng and convert
import rawpy
import imageio
import os
os.chdir(r'C:\Path\to\dir')
path =…
Olaf
- 146
- 1
- 8
1
vote
1 answer
Raw image processing with rawpy
I have raw image data (NEF-files) that I'm trying to process with rawpy.
My current workflow is as follows:
Bad Pixel fix
Calculation of white balance and brightness with a ColorChecker
Definition of rawpy Parameters
Postprocessing image with…
Fred
- 11
- 1
1
vote
1 answer
Combination of RawPy and imageio result in red image
I want to do some image processing using .dng files. I am using rawpy to convert the file into a numpy array. Then imageio to save the image. It is a very simple code, given on the rawpy webpage.
The resulting .png image is not as I expect it to be.…
Jop de Boo
- 11
- 1
0
votes
2 answers
Why does the size of raw_image equal the sensor size?
I would like to access the intensity of individual color pixels within the RGGB-Bayer pattern of my Sony camera. With the rawpy package it seems like I can obtain the raw_image, but it is a 2D-array of the shape (4024, 6048), which is the size of…
NablaDelta
- 43
- 5
0
votes
0 answers
Unable to read 12bit DNG with rawpy (alternatively: how to convert 12bit DNG to 16Geotiff while preserving the metadata)
I have a code for drone image calibration and aligning from Micasense which works with 16bit images (Tiff). Alternatively the author of the code uses rawpy to read 12bit Tiff images(link: https://github.com/micasense/imageprocessing/issues/78).
My…
murph21
- 1
- 1
0
votes
1 answer
How to handle Dark Current Correction with rawpy
I'm trying to process a .NEF-file with rawpy. Before applying bad_pixel_fix_, white balance, etc. I want to subtract a dark-frame for the dark-current correction. I solve this by getting the ADU-values of the image with rawpy's raw_image-method and…
Fred
- 11
- 1
0
votes
1 answer
How do I read an image using Rawpy image processing library, from a URL?
How do I read an image using the rawpy library, from a url?
I have tried
filepath = www.google.com/image.jpeg
im = rawpy.imread(filepath)
but it doesn't work.
I looked deeper into rawpy's code and it says it takes "path or file".
I have also tried…
CoderMath
- 25
- 1
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