SOL4Py Samples

#******************************************************************************
#
#  Copyright (c) 2018-2019 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#******************************************************************************


# encodig: utf-8

import sys
import os
import cv2
import traceback

from PyQt5.QtCore    import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui     import *

# 
sys.path.append('../')

from SOL4Py.ZApplicationView import *
from SOL4Py.ZGaussianNoiseInjector import *

from SOL4Py.ZLabeledComboBox import ZLabeledComboBox
from SOL4Py.ZLabeledSlider   import ZLabeledSlider
from SOL4Py.opencv.ZOpenCVImageView import ZOpenCVImageView  
from SOL4Py.ZVerticalPane    import ZVerticalPane

 
class MainView(ZApplicationView):
  # Inner classes
  #--------------------------------------------
  class SourceImageView(ZOpenCVImageView):
    def __init__(self, parent):
      ZOpenCVImageView.__init__(self, parent)

    def load(self, filename):
      self.load_opencv_image(filename)
      self.update()

  class NoisedImageView(ZOpenCVImageView):
    def __init__(self, parent):
      ZOpenCVImageView.__init__(self, parent)
      self.noised_image = None

    def load(self, filename):
      self.load_opencv_image(filename)
      self.update()
      
    def inject_noise(self, sigma):
      src_image = self.get_opencv_image()

      injector =  ZGaussianNoiseInjector(sigma)
      self.noised_image = injector.inject_to(src_image)

      self.set_opencv_image(self.noised_image)
      self.update()
      
    def get_noised_image(self):
      return self.noised_image
      
  #--------------------------------------------


        
  # MainView Constructor
  def __init__(self, title, x, y, width, height):
    super(MainView, self).__init__(title, x, y, width, height)

    self.filename = "../images/SlantCatImage.png"
    self.filename = os.path.abspath(self.filename)

    # 1 Create first imageview.
    self.source_image_view = self.SourceImageView(self) 

    # 2 Create second imageview.
    self.noised_image_view = self.NoisedImageView(self) 
  
    # 3 Load the file
    self.load_file(self.filename)
    
    # 4 Add imageviews to the main_layout which is a horizontal layouter.
    self.add(self.source_image_view)
    self.add(self.noised_image_view)

    self.show()


  def add_control_pane(self, fixed_width=220):
    # Control pane widget
    self.vpane = ZVerticalPane(self, fixed_width)

    self.sigma        = 30
    self.sigma_slider = ZLabeledSlider(self.vpane, "Sigma", take_odd =False,  
                        minimum=0, maximum=100, value=self.sigma)
    self.sigma_slider.add_value_changed_callback(self.sigma_changed)

    self.vpane.add(self.sigma_slider)
    self.set_right_dock(self.vpane)


  def file_open(self):
    options = QFileDialog.Options()
    self.filename, _ = QFileDialog.getOpenFileName(self,"FileOpenDialog", "",
                     "All Files (*);;Image Files (*.png;*jpg;*.jpeg)", options=options)
    if self.filename:
      self.load_file(self.filename)
      
  def load_file(self, filename):
    self.source_image_view.load(filename)
    self.noised_image_view.load(filename)
    self.noised_image_view.inject_noise(self.sigma)
    self.set_filenamed_title(filename)

  def file_save(self):
    options = QFileDialog.Options()
    dir, name = os.path.split(self.filename)
    filename = "Noised" + name
    save_filename, _ = QFileDialog.getSaveFileName(self,"FileSaveDialog-NoisedImage", filename,
                     "All Files (*);;Image Files (*.png;*jpg;*.jpeg)", options=options)
    if save_filename:
      noised_image = self.noised_image_view.get_noised_image()
      cv2.imwrite(save_filename, noised_image)

  def sigma_changed(self, value):
    self.sigma = int(value)
    #print("slider1_value_changed:{}".format(value))
    self.noised_image_view.inject_noise(self.sigma)


#*************************************************
#    
if main(__name__):
  try:
    app_name  = os.path.basename(sys.argv[0])

    applet    = QApplication(sys.argv)

    main_view = MainView(app_name, 40, 40, 900, 380)
    #main_view.resize(900, 380)
    main_view.show ()

    applet.exec_()

  except:
     traceback.print_exc()
     pass