Created
July 4, 2016 01:22
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#!/usr/bin/env python | |
# coding: utf-8 | |
from PIL import Image, ImageOps | |
import numpy | |
import serial | |
class SM1_21: | |
def __init__(self, port='/dev/ttys0', baud=115200): | |
self.printer = serial.Serial(port, baud) | |
# self.printer.write('\x1b\x5f') # フラッシュメモリのパラメータ初期化 | |
self.printer.write('\x1c\x26') | |
self.printer.write('\x1c\x43\x01') | |
def command(self, text): | |
self.printer.write(text) | |
def text(self, text, flag=0, bold=0): | |
if bold == 1: | |
self.printer.write('\x1b\x47\x01') | |
else: | |
self.printer.write('\x1b\x45\x00') | |
self.printer.write(text.encode('shift-jis', 'replace')) | |
if flag == 1: | |
self.printer.write('\x0a') | |
def output(self): | |
self.printer.write('\x0a') | |
def tab(self): | |
self.printer.write('\x09' + 'h') | |
def image(self, img_path, threshold=200, pitch=200): | |
im = Image.open(img_path) | |
width = im.size[0] | |
height = im.size[1] | |
mag = 384.0 / width | |
color = 0 | |
inv = 0 | |
Aheight = int(mag * float(height)) | |
print Aheight | |
im2 = im.resize((384, Aheight), Image.ANTIALIAS) | |
im2 = ImageOps.grayscale(im2) | |
if inv == 1: | |
im2 = ImageOps.invert(im2) | |
im2.save('test2.jpg', 'JPEG') | |
imgArray = numpy.asarray(im2) | |
imgArray.flags.writeable = True | |
for j in range(Aheight - 1): | |
for i in range(383): | |
f = imgArray[j][i] | |
if f > threshold: | |
imgArray[j][i] = 255 | |
else: | |
imgArray[j][i] = 0 | |
pilImg = Image.fromarray(numpy.uint8(imgArray)) | |
pilImg.save('test3.jpg') | |
c = 0 | |
count = 0 | |
count2 = 0 | |
for j in range(Aheight): | |
if count == 0: | |
if (Aheight - 1) - j < pitch: | |
self.printer.write('\x1d\x2a\x30') | |
self.printer.write(chr(Aheight - j)) | |
else: | |
self.printer.write('\x1d\x2a\x30') | |
self.printer.write(chr(pitch)) | |
for i in range(48): | |
for n in range(8): | |
if imgArray[j][(i * 8) + n] > 100: | |
a = color | |
else: | |
a = not (color) | |
c = (c << 1) | a | |
self.printer.write(chr(c)) | |
c = 0 | |
count += 1 | |
if count >= pitch: | |
count2 += 1 | |
self.printer.write('\x1d\x2f\x00') | |
count = 0 | |
self.printer.write('\x1d\x2f\x00') | |
self.printer.write('\n' * 3) | |
if __name__ == '__main__': | |
p = SM1_21(port='/dev/tty.SM1-21-SerialPortDevB') | |
p.image('1327.jpg') | |
raw_input() |
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