基于matlab hough变换答题卡识别.zip

function [Dom, Aom, Answer, Bn] = Analysis(stats1, stats2, Line, Img, flag) %%下区域分析 %答题区域默认为六个大区：1~20，21~40，41~60，61~75，76~90，91~105 if nargin < 5 flag = 1; end Line1 = Line{1}; Line2 = Line{2}; Line3 = Line{3}; Line4 = Line{4}; yn1 = round(Line1(1, 2) + 0.18*(Line2(1, 2)-Line1(1, 2))); yn2 = round(Line1(1, 2) + 0.34*(Line2(1, 2)-Line1(1, 2))); yn3 = round(Line1(1, 2) + 0.50*(Line2(1, 2)-Line1(1, 2))); yn4 = round(Line1(1, 2) + 0.66*(Line2(1, 2)-Line1(1, 2))); yn5 = round(Line1(1, 2) + 0.82*(Line2(1, 2)-Line1(1, 2))); yn6 = round(Line1(1, 2) + 0.98*(Line2(1, 2)-Line1(1, 2))); %下区域六条横线 Linen1_1 = [Line1(1, 1) yn1; Line1(2, 1) yn1]; Linen2_1 = [Line1(1, 1) yn2; Line1(2, 1) yn2]; Linen3_1 = [Line1(1, 1) yn3; Line1(2, 1) yn3]; Linen4_1 = [Line1(1, 1) yn4; Line1(2, 1) yn4]; Linen5_1 = [Line1(1, 1) yn5; Line1(2, 1) yn5]; Linen6_1 = [Line1(1, 1) yn6; Line1(2, 1) yn6]; % 定位竖直网格分割线 xn1 = round(Line3(1, 1) + 0.22*(Line4(1, 1)-Line3(1, 1))); xn2 = round(Line3(1, 1) + 0.26*(Line4(1, 1)-Line3(1, 1))); xn3 = round(Line3(1, 1) + 0.48*(Line4(1, 1)-Line3(1, 1))); xn4 = round(Line3(1, 1) + 0.52*(Line4(1, 1)-Line3(1, 1))); xn5 = round(Line3(1, 1) + 0.72*(Line4(1, 1)-Line3(1, 1))); xn6 = round(Line3(1, 1) + 0.77*(Line4(1, 1)-Line3(1, 1))); xn7 = round(Line3(1, 1) + 0.98*(Line4(1, 1)-Line3(1, 1))); Linen1_2 = [xn1 Line3(1, 2); xn1 Line3(2, 2)]; Linen2_2 = [xn2 Line3(1, 2); xn2 Line3(2, 2)]; Linen3_2 = [xn3 Line3(1, 2); xn3 Line3(2, 2)]; Linen4_2 = [xn4 Line3(1, 2); xn4 Line3(2, 2)]; Linen5_2 = [xn5 Line3(1, 2); xn5 Line3(2, 2)]; Linen6_2 = [xn6 Line3(1, 2); xn6 Line3(2, 2)]; Linen7_2 = [xn7 Line3(1, 2); xn7 Line3(2, 2)]; %下区域一定位横网格线坐标计算 ym1_1 = round(Line1(1, 2) + 0.38*(Linen1_1(1, 2)-Line1(1, 2))); ym2_1 = round(Line1(1, 2) + 0.5*(Linen1_1(1, 2)-Line1(1, 2))); ym3_1 = round(Line1(1, 2) + 0.65*(Linen1_1(1, 2)-Line1(1, 2))); ym4_1 = round(Line1(1, 2) + 0.80*(Linen1_1(1, 2)-Line1(1, 2))); ym5_1 = round(Line1(1, 2) + 0.93*(Linen1_1(1, 2)-Line1(1, 2))); %下区域一定位横网格线 Linem1_1 = [Line1(1, 1) ym1_1; Line1(2, 1) ym1_1]; Linem2_1 = [Line1(1, 1) ym2_1; Line1(2, 1) ym2_1]; Linem3_1 = [Line1(1, 1) ym3_1; Line1(2, 1) ym3_1]; Linem4_1 = [Line1(1, 1) ym4_1; Line1(2, 1) ym4_1]; Linem5_1 = [Line1(1, 1) ym5_1; Line1(2, 1) ym5_1]; %下区域二定位横网格线坐标计算 ym1_2 = round(Linen1_1(1, 2) + 0.30*(Linen2_1(1, 2)-Linen1_1(1, 2))); ym2_2 = round(Linen1_1(1, 2) + 0.43*(Linen2_1(1, 2)-Linen1_1(1, 2))); ym3_2 = round(Linen1_1(1, 2) + 0.60*(Linen2_1(1, 2)-Linen1_1(1, 2))); ym4_2 = round(Linen1_1(1, 2) + 0.75*(Linen2_1(1, 2)-Linen1_1(1, 2))); ym5_2 = round(Linen1_1(1, 2) + 0.90*(Linen2_1(1, 2)-Linen1_1(1, 2))); %下区域二定位横网格线 Linem1_2 = [Line1(1, 1) ym1_2; Line1(2, 1) ym1_2]; Linem2_2 = [Line1(1, 1) ym2_2; Line1(2, 1) ym2_2]; Linem3_2 = [Line1(1, 1) ym3_2; Line1(2, 1) ym3_2]; Linem4_2 = [Line1(1, 1) ym4_2; Line1(2, 1) ym4_2]; Linem5_2 = [Line1(1, 1) ym5_2; Line1(2, 1) ym5_2]; %下区域三定位横网格线坐标计算 ym1_3 = round(Linen2_1(1, 2) + 0.25*(Linen3_1(1, 2)-Linen2_1(1, 2))); ym2_3 = round(Linen2_1(1, 2) + 0.43*(Linen3_1(1, 2)-Linen2_1(1, 2))); ym3_3 = round(Linen2_1(1, 2) + 0.60*(Linen3_1(1, 2)-Linen2_1(1, 2))); ym4_3 = round(Linen2_1(1, 2) + 0.75*(Linen3_1(1, 2)-Linen2_1(1, 2))); ym5_3 = round(Linen2_1(1, 2) + 0.90*(Linen3_1(1, 2)-Linen2_1(1, 2))); %下区域三定位横网格线 Linem1_3 = [Line1(1, 1) ym1_3; Line1(2, 1) ym1_3]; Linem2_3 = [Line1(1, 1) ym2_3; Line1(2, 1) ym2_3]; Linem3_3 = [Line1(1, 1) ym3_3; Line1(2, 1) ym3_3]; Linem4_3 = [Line1(1, 1) ym4_3; Line1(2, 1) ym4_3]; Linem5_3 = [Line1(1, 1) ym5_3; Line1(2, 1) ym5_3]; %下区域四定位横网格线坐标计算 ym1_4 = round(Linen3_1(1, 2) + 0.25*(Linen4_1(1, 2)-Linen3_1(1, 2))); ym2_4 = round(Linen3_1(1, 2) + 0.40*(Linen4_1(1, 2)-Linen3_1(1, 2))); ym3_4 = round(Linen3_1(1, 2) + 0.60*(Linen4_1(1, 2)-Linen3_1(1, 2))); ym4_4 = round(Linen3_1(1, 2) + 0.75*(Linen4_1(1, 2)-Linen3_1(1, 2))); ym5_4 = round(Linen3_1(1, 2) + 0.90*(Linen4_1(1, 2)-Linen3_1(1, 2))); %下区域四定位横网格线 Linem1_4 = [Line1(1, 1) ym1_4; Line1(2, 1) ym1_4]; Linem2_4 = [Line1(1, 1) ym2_4; Line1(2, 1) ym2_4]; Linem3_4 = [Line1(1, 1) ym3_4; Line1(2, 1) ym3_4]; Linem4_4 = [Line1(1, 1) ym4_4; Line1(2, 1) ym4_4]; Linem5_4 = [Line1(1, 1) ym5_4; Line1(2, 1) ym5_4]; %下区域五定位横网格线坐标计算 ym1_5 = round(Linen4_1(1, 2) + 0.25*(Linen5_1(1, 2)-Linen4_1(1, 2))); ym2_5 = round(Linen4_1(1, 2) + 0.40*(Linen5_1(1, 2)-Linen4_1(1, 2))); ym3_5 = round(Linen4_1(1, 2) + 0.57*(Linen5_1(1, 2)-Linen4_1(1, 2))); ym4_5 = round(Linen4_1(1, 2) + 0.75*(Linen5_1(1, 2)-Linen4_1(1, 2))); ym5_5 = round(Linen4_1(1, 2) + 0.90*(Linen5_1(1, 2)-Linen4_1(1, 2))); %下区域五定位横网格线 Linem1_5 = [Line1(1, 1) ym1_5; Line1(2, 1) ym1_5]; Linem2_5 = [Line1(1, 1) ym2_5; Line1(2, 1) ym2_5]; Linem3_5 = [Line1(1, 1) ym3_5; Line1(2, 1) ym3_5]; Linem4_5 = [Line1(1, 1) ym4_5; Line1(2, 1) ym4_5]; Linem5_5 = [Line1(1, 1) ym5_5; Line1(2, 1) ym5_5]; %下区域六定位横网格线坐标计算 ym1_6 = round(Linen5_1(1, 2) + 0.25*(Linen6_1(1, 2)-Linen5_1(1, 2))); ym2_6 = round(Linen5_1(1, 2) + 0.40*(Linen6_1(1, 2)-Linen5_1(1, 2))); ym3_6 = round(Linen5_1(1, 2) + 0.57*(Linen6_1(1, 2)-Linen5_1(1, 2))); ym4_6 = round(Linen5_1(1, 2) + 0.72*(Linen6_1(1, 2)-Linen5_1(1, 2))); ym5_6 = round(Linen5_1(1, 2) + 0.88*(Linen6_1(1, 2)-Linen5_1(1, 2))); %下区域六定位横网格线 Linem1_6 = [Line1(1, 1) ym1_6; Line1(2, 1) ym1_6]; Linem2_6 = [Line1(1, 1) ym2_6; Line1(2, 1) ym2_6]; Linem3_6 = [Line1(1, 1) ym3_6; Line1(2, 1) ym3_6]; Linem4_6 = [Line1(1, 1) ym4_6; Line1(2, 1) ym4_6]; Linem5_6 = [Line1(1, 1) ym5_6; Line1(2, 1) ym5_6]; %下区域一定位竖线坐标计算 xm1_1 = round(Line3(1, 1) + 0.07*(Linen1_2(1, 1)-Line3(1, 1))); xm1_2 = round(Line3(1, 1) + 0.25*(Linen1_2(1, 1)-Line3(1, 1))); xm1_3 = round(Line3(1, 1) + 0.43*(Linen1_2(1, 1)-Line3(1, 1))); xm1_4 = round(Line3(1, 1) + 0.63*(Linen1_2(1, 1)-Line3(1, 1))); xm1_5 = round(Line3(1, 1) + 0.80*(Linen1_2(1, 1)-Line3(1, 1))); xm1_6 = round(Line3(1, 1) + 0.98*(Linen1_2(1, 1)-Line3(1, 1))); %下区域一定位竖线 Linem1_1_2 = [xm1_1 Line3(1, 2); xm1_1 Line3(2, 2)]; Linem1_2_2 = [xm1_2 Line3(1, 2); xm1_2 Line3(2, 2)]; Linem1_3_2 = [xm1_3 Line3(1, 2); xm1_3 Line3(2, 2)]; Linem1_4_2 = [xm1_4 Line3(1, 2); xm1_4 Line3(2, 2)]; Linem1_5_2 = [xm1_5 Line3(1, 2); xm1_5 Line3(2, 2)]; Linem1_6_2 = [xm1_6 Line3(1, 2); xm1_6 Line3(2, 2)]; %下区域二定位竖线坐标计算 xm2_1 = round(Linen2_2(1, 1) + 0*(Linen3_2(1, 1)-Linen2_2(1, 1))); xm2_2 = round(Linen2_2(1, 1) + 0.22*(Linen3_2(1, 1)-Linen2_2(1, 1))); xm2_3 = round(Linen2_2(1, 1) + 0.41*(Linen3_2(1, 1)-Linen2_2(1, 1))); xm2_4 = round(Linen2_2(1, 1) + 0.58*(Linen3_2(1, 1)-Linen2_2(1, 1))); xm2_5 = round(Linen2_2(1, 1) + 0.78*(Linen3_2(1, 1)-Linen2_2(1, 1))); xm2_6 = round(Linen2_2(1, 1) + 0.98*(Linen3_2(1, 1)-Linen2_2(1, 1))); %下区域二定位竖线 Linem2_1_2 = [xm2_1 Line3(1, 2); xm2_1 Line3(2, 2)]; Linem2_2_2 = [xm2_2 Line3(1, 2); xm2_2 Line3(2, 2)]; Linem2_3_2 = [xm2_3 Line3(1, 2); xm2_3 Line3(2, 2)]; Linem2_4_2 = [xm2_4 Line3(1, 2); xm2_4 Line3(2, 2)]; Linem2_5_2 = [xm2_5 Line3(1, 2); xm2_5 Line3(2, 2)]; Linem2_6_2 = [xm2_6 Line3(1, 2); xm2_6 Line3(2, 2)]; %下区域三定位竖线坐标计算 xm3_1 = round(Linen4_2(1, 1) + 0*(Linen5_2(1, 1)-Linen4_2(1, 1))); xm3_2 = round(Linen4_2(1, 1) + 0.19*(Linen5_2(1, 1)-Linen4_2(1, 1))); xm3_3 = round(Linen4_2(1, 1) + 0.37*(Linen5_2(1, 1)-Linen4_2(1, 1))); xm3_4 = round(Linen4_2(1, 1) + 0.58*(Linen5_2(1, 1)-Linen4_2(1, 1))); xm3_5 = round(Linen4_2(1, 1) + 0.78*(Linen5_2(1, 1)-Linen4_2(1, 1))); xm3_6 = round(Linen4_2(1, 1) + 1.00*(Linen5_2(1, 1)-Linen4_2(1, 1))); %下区域三定位竖线 Linem3_1_2 = [xm3_1 Line3(1, 2); xm3_1 Line3(2, 2)]; Linem3_2_2 = [xm3_2 Line3(1, 2); xm3_2 Line3(2, 2)]; Linem3_3_2 = [xm3_3 Line3(1, 2); xm3_3 Line3(2, 2)]; Linem3_4_2 = [xm3_4 Line3(1, 2); xm3_4 Line3(2, 2)]; Linem3_5_2 = [xm3_5 Line3(1, 2); xm3_5 Line3(2,