[CentralOH] Python library for image processing?

[Eric Floehr]

Eric,

Awesome, that sounds like a really fun project! Would love to watch your
progress on that! I bought KSP all the way back in 2013 but haven't played
recently. It looks like they have added a bunch of cool stuff!

Cheers,
Eric


On Tue, Apr 9, 2019 at 5:05 PM Eric Miller <miller.eric.t at gmail.com> wrote:

> thanks Eric   I do indeed plan on doing an operation on every pixel in the
> image.  Sounds like I may need to use a few libs to achieve it efficiently.
>
> The goal is to parse Kerbal Space Program biome map images
> <https://wiki.kerbalspaceprogram.com/wiki/Biome>, to determine the
> landing spots that are nearest to the most number of surface biomes.
>
> On Tue, Apr 9, 2019 at 4:17 PM Eric Floehr <eric at intellovations.com>
> wrote:
>
>> Eric,
>>
>> Depending on what you want to do, getPixel may or may not be too slow for
>> you. Both scipy[1] and skimage (sci-kit image)[2] manipulate images as
>> numpy arrays which allow you to do very efficient matrix operations, if
>> say, you are doing an operation on every pixel in an image.
>>
>> You can also easily load an image as a numpy array directly:
>>
>> from PIL import Image
>> import numpy as np
>> image = Image.open('xyz.png')
>> img_array = np.array(image)
>>
>> [1] http://cs231n.github.io/python-numpy-tutorial/#scipy-image
>>
>> [2] https://scikit-image.org/
>>
>>
>> On Tue, Apr 9, 2019 at 4:04 PM Eric Miller <miller.eric.t at gmail.com>
>> wrote:
>>
>>> Thanks, that look perfect.
>>>
>>> On Tue, Apr 9, 2019, 3:57 PM Joe Shaw <joe at joeshaw.org> wrote:
>>>
>>>> Hi,
>>>>
>>>> Check out Pillow, https://pillow.readthedocs.io/en/stable/.  It is a
>>>> fork of the earlier PIL library.  It also integrates nicely with numpy if
>>>> you need it.
>>>>
>>>> If you needed something more powerful, like bindings to the ImageMagick
>>>> C library, then something like Wand might be better.
>>>> https://github.com/emcconville/wand
>>>>
>>>> Joe
>>>>
>>>> On Tue, Apr 9, 2019 at 3:48 PM Eric Miller <miller.eric.t at gmail.com>
>>>> wrote:
>>>>
>>>>> Looking for a library to parse each pixel in an image file. Need to
>>>>> map each x,y pixel to its associated RGB values.
>>>>>
>>>>> Any recommendations for a lib that will do this well?
>>>>>
>>>>> Thanks!
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