002_lesson

Image2DB.py

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+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import random
+from PIL import Image, ImageDraw #Подключим необходимые библиотеки.
+from PIL.ImageQt import ImageQt
+
+import sqlite3 as lite
+import sys
+from PyQt5.QtWidgets import (QWidget, QHBoxLayout,
+    QLabel, QApplication)
+from PyQt5.QtGui import QPixmap, QImage, qRgb
+
+
+class Example(QWidget):
+
+    def __init__(self):
+        super().__init__()
+
+        self.initUI()
+
+
+    def initUI(self):
+
+        con = lite.connect('image.db')
+        cur = con.cursor()
+
+        file = open("big.jpg", "rb")
+
+        img = file.read()
+
+        print(img)
+
+        file.close()
+
+        binary = lite.Binary(img)
+
+        cur.execute("INSERT INTO Images(Data) VALUES (?)", (binary,))
+
+        con.commit()
+        con.close()
+
+
+
+        self.move(300, 200)
+        self.setWindowTitle('Example')
+        self.show()
+
+
+if __name__ == '__main__':
+
+    app = QApplication(sys.argv)
+    ex = Example()
+    sys.exit(app.exec_())

ImageCrop.py

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+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import random
+from PIL import Image, ImageDraw  # Подключим необходимые библиотеки.
+from PIL.ImageQt import ImageQt
+
+import sys
+from PyQt5.QtWidgets import (QWidget, QHBoxLayout,
+                             QLabel, QApplication)
+from PyQt5.QtGui import QPixmap, QImage, qRgb
+
+
+class Example(QWidget):
+
+    def __init__(self):
+        super().__init__()
+
+        self.initUI()
+
+    def initUI(self):
+        imageFile = "dark_elf.jpg"
+
+        image = Image.open(imageFile)
+
+        print(image.size)
+        cx, cy = image.size[0]/2, image.size[1]/2
+        d = 50
+
+        #image = image.crop((cx-d, cy-d, cx+d, cy+d))
+
+        image = image.crop((50, 50, 150, 150))  # 50, 50 - x,y start coordinate; 150, 150 - final size
+
+        draw = ImageDraw.Draw(image)
+
+
+
+        img_tmp = ImageQt(image.convert('RGBA'))
+
+        hbox = QHBoxLayout(self)
+        pixmap = QPixmap.fromImage(img_tmp)
+
+        lbl = QLabel(self)
+        lbl.setPixmap(pixmap)
+
+        hbox.addWidget(lbl)
+        self.setLayout(hbox)
+
+        self.move(300, 200)
+        self.setWindowTitle('Example')
+        self.show()
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    ex = Example()
+    sys.exit(app.exec_())

ikruglov_hw_020.py

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+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import random
+from PIL import Image, ImageDraw #Подключим необходимые библиотеки.
+from PIL.ImageQt import ImageQt
+
+import sys
+from PyQt5.QtWidgets import (QWidget, QHBoxLayout, QLabel, QApplication)
+from PyQt5.QtGui import QPixmap, QImage, qRgb
+
+
+class Example(QWidget):
+
+    def __init__(self):
+        super().__init__()
+
+        self.initUI()
+
+
+    def initUI(self):
+
+        imageFile = "big.jpg"
+        # imageFile = "small.png"
+
+        image = Image.open(imageFile)
+
+        # выравнивание по ширине (image.size[0])
+        width = 800
+        # высоту нужно определить (image.size[1])
+        height = int(width * image.size[1] / image.size[0])
+
+        # указываем конечные размеры (без сохранения соотношения)
+        # width = 800
+        # height = 800
+
+        image = image.resize((width, height), Image.ANTIALIAS)
+
+        draw = ImageDraw.Draw(image)
+
+        img_tmp = ImageQt(image.convert('RGBA'))
+
+        hbox = QHBoxLayout(self)
+        pixmap = QPixmap.fromImage(img_tmp)
+
+        lbl = QLabel(self)
+        lbl.setPixmap(pixmap)
+
+        hbox.addWidget(lbl)
+        self.setLayout(hbox)
+
+        self.move(300, 200)
+        self.setWindowTitle('Example')
+        self.show()
+
+
+if __name__ == '__main__':
+
+    app = QApplication(sys.argv)
+    ex = Example()
+    sys.exit(app.exec_())