remove unneeded packages

python_draw.py

 import sys
 from PyQt5 import QtCore, QtGui, QtWidgets, uic
 from PyQt5.QtCore import Qt
-import numpy as np
+# import numpy as np
+# import matplotlib.pyplot as plt
+# import matplotlib.cm as cm
 
 class Canvas(QtWidgets.QLabel):
 
     def __init__(self):
         super().__init__()
-        pixmap = QtGui.QPixmap(28, 28)
-
+        self.width = 5*128
+        self.height = 5*128
+        pixmap = QtGui.QPixmap(self.width, self.height)
+        # pixmap = pixmap.scaled(self.width*5, self.height*5)
         self.setPixmap(pixmap)
 
         self.last_x, self.last_y = None, None
-        self.pen_color = QtGui.QColor('#000000')
+        self.pen_color = QtGui.QColor('#a42f3b')
 
     def set_pen_color(self, c):
         print(c)
         self.pen_color = QtGui.QColor(c)
 
     def report_pixels(self, x, y):
-        print(int(np.clip(x, 0, 600)/600*28), int(np.clip(y, 0, 600)/600*28))
+        channels_count = 4
+        w = int(self.width/5)
+        h = int(self.height/5)
+        image = self.pixmap().scaled(w, h).toImage()
+        s = image.bits().asstring(w * h * channels_count)
+        # arr = np.frombuffer(s, dtype=np.uint8).reshape((h, w, channels_count))
+        # img = np.int64(np.all(arr[:, :, :3] == 0, axis=2))
+        # plt.imsave("image.png", img, cmap=cm.gray)
+        # img.show()
+        # print(int(np.clip(x, 0, 600)/600*28), int(np.clip(y, 0, 600)/600*28))
 
     def mouseMoveEvent(self, e):
         if self.last_x is None: # First event.
@@ -29,10 +42,11 @@ class Canvas(QtWidgets.QLabel):
 
         painter = QtGui.QPainter(self.pixmap())
         p = painter.pen()
-        p.setWidth(600/28)
+        p.setWidth(25)
         p.setColor(self.pen_color)
         painter.setPen(p)
         painter.drawLine(self.last_x, self.last_y, e.x(), e.y())
+
         self.report_pixels(e.x(), e.y())
 
         painter.end()
@@ -46,12 +60,12 @@ class Canvas(QtWidgets.QLabel):
         self.last_x = None
         self.last_y = None
 
-COLORS = [
+# COLORS = ['#a42f3b'
 # 17 undertones https://lospec.com/palette-list/17undertones
-'#000000', '#141923', '#414168', '#3a7fa7', '#35e3e3', '#8fd970', '#5ebb49',
-'#458352', '#dcd37b', '#fffee5', '#ffd035', '#cc9245', '#a15c3e', '#a42f3b',
-'#f45b7a', '#c24998', '#81588d', '#bcb0c2', '#ffffff',
-]
+# '#000000', '#141923', '#414168', '#3a7fa7', '#35e3e3', '#8fd970', '#5ebb49',
+# '#458352', '#dcd37b', '#fffee5', '#ffd035', '#cc9245', '#a15c3e', '#a42f3b',
+# '#f45b7a', '#c24998', '#81588d', '#bcb0c2', '#ffffff',
+# ]
 
 
 class QPaletteButton(QtWidgets.QPushButton):
@@ -76,7 +90,7 @@ class MainWindow(QtWidgets.QMainWindow):
         l.addWidget(self.canvas)
 
         palette = QtWidgets.QHBoxLayout()
-        self.add_palette_buttons(palette)
+        # self.add_palette_buttons(palette)
         l.addLayout(palette)
 
         self.setCentralWidget(w)