pil example sortQt (snippet)

Python pil example 'sortQt'

Functions in program:

• def select_image():
• def prevPic(event=None):
• def nextPic(event=None):
• def cpToLabel(event=None):
• def refresh():

Modules used in program:

• import os
• import glob
• import cv2
• import tkinter.filedialog as tkFileDialog

python sortQt

Python pil example: sortQt

# import the necessary packages
from tkinter import *
from PIL import Image
from PIL import ImageTk
import tkinter.filedialog as tkFileDialog
import cv2
import glob
from shutil import copyfile
import os

def refresh():
    global panelA
    global image_list, image_index
    global lbl1
    global strIndex

    image = cv2.imread(image_list[image_index])
    #image = cv2.resize(image) # JFS
    image = cv2.resize(image, (0, 0), fx=0.35, fy=0.35) # JFS
    image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)

    # convert the images to PIL format...
    image = Image.fromarray(image)

    # ...and then to ImageTk format
    image = ImageTk.PhotoImage(image)

    strIndex.set("{0}".format(image_index))
    #lbl1.text = image_index
    # if the panels are None, initialize them
    if panelA is None:
        # the first panel will store our original image
        panelA = Label(image=image)
        panelA.image = image
        #panelA.pack(side="left", padx=10, pady=10)
        panelA.grid(column=1, rowspan=3)
    else:
        panelA.configure(image=image)
        panelA.image = image
    return

def cpToLabel(event=None):
    global image_list, image_index

    copyfile(image_list[image_index], "/media/jfsix/E22A67922A676311/toLabel/"+os.path.basename(image_list[image_index]))
    refresh()

    return

def nextPic(event=None):
    global image_list, image_index


    image_index += 1
    image_index = image_index % len(image_list)

    refresh()

    return

def prevPic(event=None):
    global image_list, image_index


    image_index -= 1
    if image_index <0:
        image_index = len(image_list)
    else:
        image_index = image_index % len(image_list)

    refresh()

    return


def select_image():
    # grab a reference to the image panels
    #global panelA#, panelB
    global image_list, image_index

    # open a file chooser dialog and allow the user to select an input
    # image
    #path = tkFileDialog.askopenfilename()
    path = tkFileDialog.askdirectory(initialdir="/media/jfsix/E22A67922A676311/GOPRO")
    if len(path)>0:
        image_list= glob.glob(path + "/**/*.JPG", recursive=True)
        image_index = 0


    # ensure a file path was selected
    if len(path) < 0:
        # load the image from disk, convert it to grayscale, and detect
        # edges in it
        image = cv2.imread(path)
        image = cv2.resize(image, (0, 0), fx=0.25, fy=0.25) # JFS
        gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
        edged = cv2.Canny(gray, 50, 100)

        # OpenCV represents images in BGR order; however PIL represents
        # images in RGB order, so we need to swap the channels
        image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)

        # convert the images to PIL format...
        image = Image.fromarray(image)
        edged = Image.fromarray(edged)

        # ...and then to ImageTk format
        image = ImageTk.PhotoImage(image)
        edged = ImageTk.PhotoImage(edged)

        # if the panels are None, initialize them
        if panelA is None or panelB is None:
            # the first panel will store our original image
            panelA = Label(image=image)
            panelA.image = image
            panelA.pack(side="left", padx=10, pady=10)

            # while the second panel will store the edge map
            panelB = Label(image=edged)
            panelB.image = edged
            panelB.pack(side="right", padx=10, pady=10)

        # otherwise, update the image panels
        else:
            # update the pannels
            panelA.configure(image=image)
            panelB.configure(image=edged)
            panelA.image = image
            panelB.image = edged

# initialize the window toolkit along with the two image panels
root = Tk()
panelA = None
panelB = None
image_list = []
image_index = 0
strIndex = StringVar()
strIndex.set(image_index)


buttonframe = Frame(root)
buttonframe.grid(row=5, column=2)        

panelA = Label(buttonframe)
panelA.grid(column=1, rowspan=5)

lbl1 = Label(buttonframe, textvariable=strIndex).grid(row=3, column=0)
btn1 = Button(buttonframe, text="Next", command=nextPic).grid(row=0, column=0)
btn2 = Button(buttonframe, text="Previous", command=prevPic).grid(row=1, column=0)
btn = Button(buttonframe, text="Select an path", command=select_image).grid(row=2, column=0)
btn3 = Button(buttonframe, text="ToLabel...", command=cpToLabel).grid(row=4, column=0)

root.bind('n', nextPic)
root.bind('p', prevPic)
root.bind('a', cpToLabel)
root.mainloop()

Python links

• Learn Python: https://pythonbasics.org/
• Python Tutorial: https://pythonprogramminglanguage.com