patch2image/plotting.py at master · Taib/patch2image · GitHub

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# -*- coding: utf-8 -*-
"""Usefull methods for patch and image visualization.
"""

# Author: Taibou BIRGUI SEKOU <taibou.birgui_sekou@insa-cvl.fr>

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import Slider, Button

def plot_images(images, nrows=None, ncols=None,
             title='', figsize=(4.2, 4), cmap=None):
    plt.figure(figsize=figsize)
    c = np.ceil(np.sqrt(len(images))) if ncols is None else ncols
    l = len(images)//c if nrows is None else nrows
    for i, im in enumerate(images):
        plt.subplot(l, c, i+1)
        plt.imshow(np.squeeze(im), cmap=cmap)
        plt.xticks(())
        plt.yticks(())
    plt.suptitle(title)
    plt.subplots_adjust(0.08, 0.02, 0.92, 0.85, 0.08, 0.23)
    plt.show()

def plot_3D(data):

    fig, ax = plt.subplots()
    plt.subplots_adjust( bottom=0.25)
    plt.imshow(data[10])

    axcolor = 'lightgoldenrodyellow'
    axZ = plt.axes([0.15, 0.1, 0.65, 0.03], facecolor=axcolor)

    sZ = Slider(axZ, 'Z', 1, data.shape[0], valinit=0)

    def update(val):
        Z = int(sZ.val)
        ax.imshow(data[Z])
    sZ.on_changed(update)

    resetax = plt.axes([0.8, 0.025, 0.1, 0.04])
    button = Button(resetax, 'Reset', color=axcolor, hovercolor='0.975')

    def reset(event):
        sZ.reset()
    button.on_clicked(reset)
    plt.show()


def plot_4D(data):

    fig, ax = plt.subplots()
    plt.subplots_adjust( bottom=0.25)
    plt.imshow(data[10, 10])

    axcolor = 'lightgoldenrodyellow'
    axZ = plt.axes([0.15, 0.1, 0.65, 0.03], facecolor=axcolor)
    axT = plt.axes([0.15, 0.15, 0.65, 0.03], facecolor=axcolor)

    sZ = Slider(axZ, 'Z', 1, data.shape[1], valinit=0)
    sT = Slider(axT, 'T', 1, data.shape[0], valinit=0)

    def update(val):
        T = int(sT.val)
        Z = int(sZ.val)
        ax.imshow(data[T, Z])
    sZ.on_changed(update)
    sT.on_changed(update)

    resetax = plt.axes([0.8, 0.025, 0.1, 0.04])
    button = Button(resetax, 'Reset', color=axcolor, hovercolor='0.975')

    def reset(event):
        sZ.reset()
        sT.reset()
    button.on_clicked(reset)

    plt.show()