runway_model.py

import runway
from runway.data_types import number, text, image
import numpy as np
from scipy import ndimage
import time

@runway.command(name='convert',
                inputs={ 'image': image },
                outputs={ 'image': image })
def generate(model, inputs):
    img = np.array(inputs['image'])[:,:,:3]
    # invert colors
    # img = np.invert(img)[:,:,:3]
    # to grayscale
    img = np.dot(img[...,:3], [0.299, 0.587, 0.114])
    # rotate
    # img = ndimage.rotate(img, 30, mode='constant')
        
    return {
        'image': img.astype(np.uint8)
    }

if __name__ == '__main__':
    runway.run(host='0.0.0.0', port=8080, debug=True)