HyperLPR/hyperlpr/pipline.py

#coding=utf-8
import detect
import  finemapping  as  fm

import segmentation
import cv2

import time
import numpy as np

from PIL import ImageFont
from PIL import Image
from PIL import ImageDraw
import json

import sys
import typeDistinguish as td


reload(sys)
sys.setdefaultencoding("utf-8")

fontC = ImageFont.truetype("./Font/platech.ttf", 14, 0);


#寻找车牌左右边界

def find_edge(image):
    sum_i = image.sum(axis=0)
    sum_i =  sum_i.astype(np.float)
    sum_i/=image.shape[0]*255
    # print sum_i

    start= 0 ;
    end = image.shape[1]-1

    for i,one in enumerate(sum_i):
        if one>0.4:
            start = i;
            if start-3<0:
                start = 0
            else:
                start -=3

            break;
    for i,one in enumerate(sum_i[::-1]):

        if one>0.4:
            end = end - i;
            if end+4>image.shape[1]-1:
                end = image.shape[1]-1
            else:
                end+=4
            break
    return start,end


#垂直边缘检测

def verticalEdgeDetection(image):
    image_sobel = cv2.Sobel(image.copy(),cv2.CV_8U,1,0)
    # image = auto_canny(image_sobel)

    # img_sobel, CV_8U, 1, 0, 3, 1, 0, BORDER_DEFAULT
    # canny_image  = auto_canny(image)
    flag,thres = cv2.threshold(image_sobel,0,255,cv2.THRESH_OTSU|cv2.THRESH_BINARY)
    print flag
    flag,thres = cv2.threshold(image_sobel,int(flag*0.7),255,cv2.THRESH_BINARY)
    # thres = simpleThres(image_sobel)
    kernal = np.ones(shape=(3,15))
    thres = cv2.morphologyEx(thres,cv2.MORPH_CLOSE,kernal)
    return thres

#确定粗略的左右边界
def horizontalSegmentation(image):

    thres = verticalEdgeDetection(image)
    # thres = thres*image
    head,tail = find_edge(thres)
    # print head,tail
    # cv2.imshow("edge",thres)
    tail = tail+5
    if tail>135:
        tail = 135
    image = image[0:35,head:tail]
    image = cv2.resize(image, (int(136), int(36)))
    return image



#打上boundingbox和标签
def drawRectBox(image,rect,addText):
    cv2.rectangle(image, (int(rect[0]), int(rect[1])), (int(rect[0] + rect[2]), int(rect[1] + rect[3])), (0,0, 255), 2,cv2.LINE_AA)
    cv2.rectangle(image, (int(rect[0]-1), int(rect[1])-16), (int(rect[0] + 80), int(rect[1])), (0, 0, 255), -1,
                  cv2.LINE_AA)

    img = Image.fromarray(image)
    draw = ImageDraw.Draw(img)
    draw.text((int(rect[0]+1), int(rect[1]-16)), addText.decode("utf-8"), (255, 255, 255), font=fontC)
    imagex = np.array(img)

    return imagex




import cache
import finemapping_vertical as fv


def RecognizePlateJson(image):

    images = detect.detectPlateRough(image,image.shape[0],top_bottom_padding_rate=0.1)

    jsons = []

    for j,plate in enumerate(images):


        plate,rect,origin_plate =plate


        cv2.imwrite("./"+str(j)+"_rough.jpg",plate)

        # print "车牌类型:",ptype
        # plate = cv2.cvtColor(plate, cv2.COLOR_RGB2GRAY)
        plate  =cv2.resize(plate,(136,int(36*2.5)))
        t1 = time.time()


        ptype = td.SimplePredict(plate)
        if ptype>0 and ptype<5:
            plate = cv2.bitwise_not(plate)
        # demo = verticalEdgeDetection(plate)

        image_rgb = fm.findContoursAndDrawBoundingBox(plate)
        image_rgb = fv.finemappingVertical(image_rgb)
        cache.verticalMappingToFolder(image_rgb)
        # print time.time() - t1,"校正"

        image_gray = cv2.cvtColor(image_rgb,cv2.COLOR_BGR2GRAY)


        cv2.imwrite("./"+str(j)+".jpg",image_gray)
        # image_gray = horizontalSegmentation(image_gray)


        t2 = time.time()
        val = segmentation.slidingWindowsEval(image_gray)
        if len(val)==3:
            blocks, res, confidence = val
            if confidence/7>0.0:
                image =  drawRectBox(image,rect,res)
            for i,block in enumerate(blocks):

                block_ = cv2.resize(block,(25,25))
                block_ = cv2.cvtColor(block_,cv2.COLOR_GRAY2BGR)
                image[j * 25:(j * 25) + 25, i * 25:(i * 25) + 25] = block_
                if image[j*25:(j*25)+25,i*25:(i*25)+25].shape == block_.shape:
                    pass

            plate_name =  res
            res_json = {}
            if confidence/7>0.0:
                res_json["Name"] = plate_name.decode()
                res_json["Type"] = td.plateType[ptype]
                res_json["Confidence"] = confidence/7;
                res_json["x"] = int(rect[0])
                res_json["y"] = int(rect[1])
                res_json["w"] = int(rect[2])
                res_json["h"] = int(rect[3])
                # print "车牌:",res,"置信度:",confidence/7
                jsons.append(res_json)


            else:
                pass
                # print "不确定的车牌:", res, "置信度:", confidence
    print jsons
    print json.dumps(jsons,ensure_ascii=False,encoding="gb2312")

    return json.dumps(jsons,ensure_ascii=False,encoding="gb2312")





def SimpleRecognizePlate(image):
    t0 = time.time()
    images = detect.detectPlateRough(image,image.shape[0],top_bottom_padding_rate=0.1)
    res_set = []
    for j,plate in enumerate(images):
        plate, rect, origin_plate  =plate
        # plate = cv2.cvtColor(plate, cv2.COLOR_RGB2GRAY)
        plate  =cv2.resize(plate,(136,36*2))
        t1 = time.time()

        ptype = td.SimplePredict(plate)
        if ptype>0 and ptype<5:
            plate = cv2.bitwise_not(plate)

        image_rgb = fm.findContoursAndDrawBoundingBox(plate)
        image_rgb = fv.finemappingVertical(image_rgb)
        cache.verticalMappingToFolder(image_rgb)
        image_gray = cv2.cvtColor(image_rgb,cv2.COLOR_RGB2GRAY)

        # image_gray = horizontalSegmentation(image_gray)
        cv2.imshow("image_gray",image_gray)
        # cv2.waitKey()

        cv2.imwrite("./"+str(j)+".jpg",image_gray)
        # cv2.imshow("image",image_gray)
        # cv2.waitKey(0)
        print "校正",time.time() - t1,"s"
        # cv2.imshow("image,",image_gray)
        # cv2.waitKey(0)
        t2 = time.time()
        val = segmentation.slidingWindowsEval(image_gray)
        # print val
        print "分割和识别",time.time() - t2,"s"
        if len(val)==3:
            blocks, res, confidence = val
            if confidence/7>0.7:
                image =  drawRectBox(image,rect,res)
                res_set.append(res)
                for i,block in enumerate(blocks):

                    block_ = cv2.resize(block,(25,25))
                    block_ = cv2.cvtColor(block_,cv2.COLOR_GRAY2BGR)
                    image[j * 25:(j * 25) + 25, i * 25:(i * 25) + 25] = block_
                    if image[j*25:(j*25)+25,i*25:(i*25)+25].shape == block_.shape:
                        pass


            if confidence>0:
                print "车牌:",res,"置信度:",confidence/7
            else:
                pass

                # print "不确定的车牌:", res, "置信度:", confidence

    print time.time() - t0,"s"
    return image,res_set