A shot in the dark: are you sure the data format is double precision
float? Try float16 RGBA via numpy 1.7.
import numpy
data = numpy.empty((spec.height, spec.width, spec.nchannels),
dtype=numpy.float16)
image.read_image(spec.format, data)
from matplotlib import pyplot
pyplot.imshow(data)
pyplot.show()
Christoph
On 3/11/2013 8:10 PM, Scott Wilson wrote:
Hello,
I have another issue. I'm reading an exr file, and the result is not
expected.
Code:
import OpenImageIO as oiio
import os, array
file_dir = 'C:\Users\digi\Pictures\inspiration'
image_path = os.path.join(file_dir, 'test.exr')
image_input = oiio.ImageInput.create(image_path)
image = image_input.open(image_path)
spec = image.spec()
data = array.array('d', '\0' * spec.image_bytes(True))
image.read_image(spec.format, data)
for channel in range(len(data)):
print(data[channel])
Result:
print: 5.9578290394e-39
On Mon, Mar 11, 2013 at 7:46 PM, Christoph Gohlke <[email protected]
<mailto:[email protected]>> wrote:
Hi Scott,
There are some scripts at
<https://github.com/__OpenImageIO/oiio/tree/master/__src/python
<https://github.com/OpenImageIO/oiio/tree/master/src/python>> but
they seem outdated. The "Python Bindings" chapter in the
documentation
<https://github.com/__OpenImageIO/oiio/blob/RB-1.1/__src/doc/openimageio.pdf
<https://github.com/OpenImageIO/oiio/blob/RB-1.1/src/doc/openimageio.pdf>>
is empty. For now it's probably best to follow the C++ API and/or
read the source code of the Python bindings.
Christoph
On 3/11/2013 7:16 PM, Scott Wilson wrote:
Hi Chris,
Looks like it works. Thanks! Is there any more examples or
documentation
on the Python bindings?
Regards,
Scott Wilson
On Mon, Mar 11, 2013 at 6:55 PM, Christoph Gohlke
<[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>> wrote:
Hi,
I think the API recently changed. This works for me:
import OpenImageIO as oiio
image_input = oiio.ImageInput.create('jpg', '')
image =
image_input.open('oiio-images.____git\\tahoe-gps.jpg')
spec = image.spec()
print image, spec.width, spec.height
<OpenImageIO.ImageInput object at 0x00000000029AE7B8> 2048 1536
--
Christoph
Hello,
The following code is throwing me the following error
while running:
import OpenImageIO as oiio
import os
oiio_path = 'C:\Python27\Lib\site-____packages'
file_dir =
'C:\Users\scott\Pictures\____inspiration\characters'
ext = 'jpg'
image_path = os.path.join(file_dir, '000g1kzq.jpg')
image_input = oiio.ImageInput.create(ext, oiio_path)
spec = oiio.ImageSpec()
result = image_input.open(image_path, spec)
print(result)
I get the following traceback:
Traceback (most recent call last):
File "C:/Users/scott/Desktop/oiio_____test.py",
line 12, in
<module>
result = image_input.open(image_path, spec)
ArgumentError: Python argument types in
ImageInput.open(str, ImageSpec)
did not match C++ signature:
open(class std::basic_string<char,struct
std::char_traits<char>,class
std::allocator<char> > filename)
I'm using OpenImageIO 1.1.6 64 bit for Python 2.7
compiled here:
http://www.lfd.uci.edu/~____gohlke/pythonlibs/#openimageio
<http://www.lfd.uci.edu/%7E__gohlke/pythonlibs/#openimageio>
<http://www.lfd.uci.edu/%__7Egohlke/pythonlibs/#__openimageio
<http://www.lfd.uci.edu/%7Egohlke/pythonlibs/#openimageio>>
If anyone could let me know if I am doing anything
wrong, that
would be
extremely appreciated. Thanks.
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