IMAGE_SWIRL

Adjusts the gamma of an input image and outputs the adjusted image Params: default : Image The input image gain : float, default=1 The gain of the logarithmic correction. gamma : float, default=1 The gamma to correct to. Returns: out : Image The adjusted image.

Python Code

import numpy as np
from flojoy import Image, flojoy
from skimage.transform import swirl


@flojoy(deps={"scikit-image": "0.21.0"})
def IMAGE_SWIRL(
    default: Image,
    rotation: float = 0,
    strength: float = 10,
    radius: float = 120,
) -> Image:
    """
    Adjusts the gamma of an input image and outputs the adjusted image

    Parameters
    ----------
    default: Image
        The input image
    gain: float, default=1
        The gain of the logarithmic correction.
    gamma: float, default=1
        The gamma to correct to.

    Returns
    -------
    Image
        The adjusted image.
    """

    r = default.r
    g = default.g
    b = default.b
    a = default.a

    if a is not None:
        rgba_image = np.stack((r, g, b, a), axis=2)
    else:
        rgba_image = np.stack((r, g, b), axis=2)

    corrected_image = swirl(
        rgba_image,
        rotation=rotation,
        strength=strength,
        radius=radius,
    )

    r = corrected_image[:, :, 0]
    g = corrected_image[:, :, 1]
    b = corrected_image[:, :, 2]
    if a is not None:
        a = corrected_image[:, :, 3]

    return Image(r=r, g=g, b=b, a=a)

Find this Flojoy Block on GitHub

Example

Having problems with this example app? Join our Discord community and we will help you out!

Press enter or space to select a node.You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.

Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.

Download this Flojoy App

In this example, two image transformation were performed.

First the necessary blocks were added: SKIMAGE to fetch the example image, 3 IMAGE blocks to view the images, ROTATE_IMAGE, AND IMAGE_SWIRL.

The degree parameter for ROTATE_IMAGE controls the degrees of rotation and was set to 45, and the radius parameter of IMAGE_SWIRL was set to 750. The SKLEARN image was set to camera. The remaining parameters were left at default values

The blocks were connected as shown and the app was run.

Try changing the mode of the image rotation block and view the changes.