Робота з картинками в Python

Установка потрібних бібліотек

pip install numpy
pip install pygame
pip install pillow
pip install pyopengl
pip install opencv-python
pip install requests

# установити https://www.microsoft.com/en-us/download/details.aspx?id=48145

Показати картинку через Pillow

from PIL import Image

im = Image.open("sample-image.png")

im.show()

Показати вікно через Pygame

import pygame
pygame.init()
(width, height) = (300, 200)
screen = pygame.display.set_mode((width, height))
screen.fill((0,0,0))
pygame.display.update()
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
pygame.quit()

Показати картинку через Pygame

import pygame
from PIL import Image

im = Image.open("/home/danbst/Pictures/readbooks.png")
pygameim = pygame.image.fromstring(im.tobytes(), im.size, im.mode)
pygameim = pygame.transform.scale(pygameim, (500, 400))

pygame.init()
(width, height) = (700, 500)
screen = pygame.display.set_mode((width, height))
screen.fill((0,0,0))

screen.blit(pygameim, (50, 50))
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    pygame.display.update()
pygame.quit()

Скачати картинку з інтернету та показати через Pygame

import pygame
from PIL import Image
import requests
from io import BytesIO
import time

# Скачування
start_time = time.time()
print('Downloading image....')
response = requests.get('https://i.imgur.com/y2mYjYl.png')
im = Image.open(BytesIO(response.content))
print('Image downloaded in {:.2f} seconds'
        .format(time.time() - start_time))

# перетворення у формат pygame
pygameim = pygame.image.fromstring(im.tobytes(), im.size, im.mode)
# маштабування
pygameim = pygame.transform.scale(pygameim, (500, 400))

# ініціалізація pygame
pygame.init()
(width, height) = (700, 500)
screen = pygame.display.set_mode((width, height))
screen.fill((0,0,0))

# >>>> МАЛЮВАННЯ <<<<<
screen.blit(pygameim, (50, 50))
pygame.display.update()

# Вічний цикл для обробки подій
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    pygame.display.update()
pygame.quit()

Показати 3D куб

import pygame as pg
from pygame.locals import *

from OpenGL.GL import *
from OpenGL.GLU import *

cubeVertices = ((1,1,1),(1,1,-1),(1,-1,-1),(1,-1,1),(-1,1,1),(-1,-1,-1),(-1,-1,1),(-1,1,-1))
cubeEdges = ((0,1),(0,3),(0,4),(1,2),(1,7),(2,5),(2,3),(3,6),(4,6),(4,7),(5,6),(5,7))
cubeQuads = ((0,3,6,4),(2,5,6,3),(1,2,5,7),(1,0,4,7),(7,4,6,5),(2,3,0,1))

def wireCube():
    glBegin(GL_LINES)
    for cubeEdge in cubeEdges:
        for cubeVertex in cubeEdge:
            glVertex3fv(cubeVertices[cubeVertex])
    glEnd()

def solidCube():
    glBegin(GL_QUADS)
    for cubeQuad in cubeQuads:
        for cubeVertex in cubeQuad:
            glVertex3fv(cubeVertices[cubeVertex])
    glEnd()

def main():
    pg.init()
    display = (300, 200)
    pg.display.set_mode(display, DOUBLEBUF|OPENGL)

    gluPerspective(45, (display[0]/display[1]), 0.1, 50.0)

    glTranslatef(0.0, 0.0, -5)

    while True:
        for event in pg.event.get():
            if event.type == pg.QUIT:
                pg.quit()
                quit()

        glRotatef(1, 1, 1, 1)
        glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
        #solidCube()
        wireCube()
        pg.display.flip()
        pg.time.wait(10)

if __name__ == "__main__":
    main()

Показати картинку на на 3D кубі

import pygame as pg
from pygame.locals import *

from OpenGL.GL import *
from OpenGL.GLU import *

from PIL import Image
import numpy

cubeVertices = ((1,1,1),(1,1,-1),(1,-1,-1),(1,-1,1),(-1,1,1),(-1,-1,-1),(-1,-1,1),(-1,1,-1))
cubeEdges = ((0,1),(0,3),(0,4),(1,2),(1,7),(2,5),(2,3),(3,6),(4,6),(4,7),(5,6),(5,7))
cubeQuads = ((0,3,6,4),(2,5,6,3),(1,2,5,7),(1,0,4,7),(7,4,6,5),(2,3,0,1))

def wireCube():
    glBegin(GL_LINES)
    for cubeEdge in cubeEdges:
        for cubeVertex in cubeEdge:
            glVertex3fv(cubeVertices[cubeVertex])
    glEnd()

def solidCube(tex):
    glEnable(GL_TEXTURE_2D)
    glBindTexture(GL_TEXTURE_2D, tex)
    glBegin(GL_QUADS)
    for cubeVertex, texVertex in zip(cubeQuads[0], [(1.0,1.0), (1.0, 0.0), (0.0, 0.0), (0.0, 1.0)]):
        glTexCoord2f(texVertex[0],texVertex[1])
        glVertex3fv(cubeVertices[cubeVertex])
    glEnd()
    glDisable(GL_TEXTURE_2D)
    
    glBegin(GL_LINES)
    for cubeQuad in cubeQuads[1:]:
        for cubeVertex in cubeQuad:
            glVertex3fv(cubeVertices[cubeVertex])
    glEnd()

def main():
    pg.init()
    display = (700, 500)
    pg.display.set_mode(display, DOUBLEBUF|OPENGL)

    gluPerspective(45, (display[0]/display[1]), 0.1, 50.0)

    glTranslatef(0.0, 0.0, -5)
    
    tex = ReadTexture('/home/danbst/Pictures/readbooks.png')
    
    while True:
        for event in pg.event.get():
            if event.type == pg.QUIT:
                pg.quit()
                quit()

        glRotatef(1, 1, 1, 1)
        glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
        solidCube(tex)
        #wireCube()
        pg.display.flip()
        pg.time.wait(10)

def ReadTexture(filename):
      # PIL can open BMP, EPS, FIG, IM, JPEG, MSP, PCX, PNG, PPM
      # and other file types.  We convert into a texture using GL.
      print('trying to open', filename)
      try:
         image = Image.open(filename)
         imgae = image.convert("RGB")
      except IOError as ex:
         print('IOError: failed to open texture file')
         message = template.format(type(ex).__name__, ex.args)
         print(message)
         return -1
      print('opened file: size=', image.size, 'format=', image.format)
      imageData = numpy.array(list(image.getdata()), numpy.uint8)

      textureID = glGenTextures(1)
      glPixelStorei(GL_UNPACK_ALIGNMENT, 4)
      glBindTexture(GL_TEXTURE_2D, textureID)
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0)
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0)
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, image.size[0], image.size[1], 0, GL_RGBA, GL_UNSIGNED_BYTE, imageData)

      image.close()
      return textureID

if __name__ == "__main__":
    main()