Add files via upload

Author: manu22may

Future maybe.pdf

@@ -0,0 +1,68 @@
+
+//Morse Code Binary Tree
+//  Left child at 2n+1
+// Right child at 2n+2
+
+const char MorseTree[] = {'\0','E', 'T', 'I', 'A', 'N', 'M', 'S',
+                          'U', 'R', 'W', 'D', 'K', 'G', 'O', 'H',
+                          'V', 'F', 'U', 'L', 'A', 'P', 'J', 'B',
+                          'X', 'C', 'Y', 'Z', 'Q', '\0','\0','5',
+                          '4', '\0','3', '\0','\0','\0','2', '\0',
+                          '\0','+', '\0','\0','\0','\0','1', '6',
+                          '=', '/', '\0','\0','\0','(', '\0','7',
+                          '\0','\0','\0','8', '\0','9', '0', '\0',
+                          '\0','\0','\0','\0','\0','\0','\0','\0',
+                          '\0','\0','\0','?', '_', '\0','\0','\0',
+                          '\0','"', '\0','\0','.', '\0','\0','\0',
+                          '\0','@', '\0','\0','\0','\0','\0','\0',
+                          '-', '\0','\0','\0','\0','\0','\0','\0',
+                          '\0',' ', '!', '\0',')', '\0','\0','\0',
+                          '\0','\0',',', '\0','\0','\0','\0',':',
+                          '\0','\0','\0','\0','\0','\0','\0'
+                         };
+
+//PIN 4 is LDR
+int val = 0; // A Variable to Store the Light Value from the LDR
+int ctrHigh = 0;
+int ctrLow = 0;
+int codePtr = 0;
+int dotLen = 400;
+
+void setup()
+{
+  Serial.begin(9600);// Start a Serial Connection
+  Serial.print(codePtr);
+}
+
+void loop()
+{
+  val = analogRead(4);
+  
+  if (val >= 400)  //on and light received  //change this value
+  {
+    //Serial.print(val);Serial.print("\n");}
+    
+    ctrHigh++;
+    ctrLow = 0;
+    digitalWrite(13, HIGH);
+    tone(9, 1000);
+  } else {      //off and no light
+    ctrLow++;
+    if ((ctrHigh >= dotLen) && (ctrHigh < dotLen*2)) {
+      Serial.print(".");
+      codePtr = (2*codePtr) + 1;
+    } else if (ctrHigh >= dotLen * 2) {
+      Serial.print("-");
+      codePtr = (2*codePtr) + 2;
+    } else {
+      if(ctrLow == dotLen*2){
+        Serial.print(MorseTree[codePtr]);
+        codePtr = 0;
+      }
+    }
+
+    ctrHigh = 0;
+    digitalWrite(13, LOW);
+    noTone(9);
+  }
+}

MORSERx/MORSERx.ino

@@ -0,0 +1,80 @@
+//TRANSMITTER
+//CONNECT LASER to spin 13
+const char* MorseTable[] = {
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        // space, !, ", #, $, %, &, '
+        NULL, "-.-.--", ".-..-.", NULL, NULL, NULL, NULL, ".----.",
+        // ( ) * + , - . /
+        "-.--.", "-.--.-", NULL, ".-.-.", "--..--", "-....-", ".-.-.-", "-..-.",
+        // 0 1 2 3 4 5 6 7
+        "-----", ".----", "..---", "...--", "....-", ".....", "-....", "--...",
+        // 8 9 : ; < = > ?
+        "---..", "----.", "---...", "-.-.-.", NULL, "-...-", NULL, "..--..",
+        // @ A B C D E F G
+        ".--.-.", ".-", "-...", "-.-.", "-..", ".", "..-.", "--.",
+        // H I J K L M N O
+        "....", "..", ".---", "-.-", ".-..", "--", "-.", "---",
+        // P Q R S T U V W
+        ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--",
+        // X Y Z [ \ ] ^ _
+        "-..-", "-.--", "--..", NULL, NULL, NULL, NULL, "..--.-",
+        // ' a b c d e f g
+        NULL, ".-", "-...", "-.-.", "-..", ".", "..-.", "--.",
+        // h i j k l m n o
+        "....", "..", ".---", "-.-", ".-..", "--", "-.", "---",
+        // p q r s t u v w
+        ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--",
+        // x y z { | } ~ DEL
+        "-..-", "-.--", "--..", NULL, NULL, NULL, NULL, NULL,
+        };
+
+int dotLength = 50;
+int dashLength = dotLength*3;
+
+void setup() {
+  // put your setup code here, to run once:
+  pinMode(13, OUTPUT);
+  Serial.begin(9600);
+}
+
+void loop() {
+  char ch;
+  if(Serial.available()){
+    ch = Serial.read();
+    flashDashDot(MorseTable[ch]);
+    delay(dotLength*2);
+  }
+}
+
+void flashDashDot(const char * morseCode)
+{
+  int i = 0;
+  while(morseCode[i] != 0)
+  {
+    if(morseCode[i] == '.'){
+      dot();
+    } else if (morseCode[i] == '-'){
+      dash();
+    }
+    i++;
+  }
+}
+
+void dot()
+{
+  digitalWrite(13, HIGH);
+  delay(dotLength);
+  digitalWrite(13, LOW);
+  delay(dotLength);
+}
+
+void dash()
+{
+  digitalWrite(13, HIGH);
+  delay(dashLength);
+  digitalWrite(13, LOW);
+  delay(dotLength);
+}

MORSETx/MORSETx.ino

@@ -0,0 +1,10 @@
+clc
+clear all
+arduino=serial('COM4','BaudRate',9600); % create serial communication object 
+fopen(arduino); % initiate arduino communication
+pause(1);
+text=input('enter','s');
+text='aman is the king of the world';
+fprintf(arduino,'%s\n',text,'sync'); % send answer variable content to arduino
+pause(1);
+fclose(arduino);

OCRDemoMatlab-master/Arduino.m

@@ -0,0 +1,31 @@
+clc
+clear all
+
+% TEXT TO SPEECH
+NET.addAssembly('System.Speech');
+obj = System.Speech.Synthesis.SpeechSynthesizer;
+obj.Volume = 100;
+
+Speak(obj,"Optical character recognition.");
+pause(0.5);
+Speak(obj,"SELECT IMAGE");
+[file,path] = uigetfile({'*.bmp;*.png'});
+if isequal(file,0)
+   disp('User selected Cancel')
+else
+    imagen=imread(file);
+    %imagen = imflatfield(imagen,30);
+    imagen=imsharpen(imagen);
+    unstr=OCR(imagen);
+    str=lower(unstr);
+    pause(1);
+    
+
+    %SPEAK OUT TEXT
+    for i=1:length(str)
+        disp(str(i));
+        Speak(obj,str(i));
+    end
+ 
+end
+

OCRDemoMatlab-master/FINAL.m

@@ -0,0 +1,28 @@
+clc
+clear all
+[file,path] = uigetfile({'*.bmp;*.png'},...
+                          'Select Image File To send');
+if isequal(file,0)
+   disp('User selected Cancel')
+else
+    imagen=imread(file);
+    %imagen = imflatfield(imagen,30);
+    imagen=imsharpen(imagen);
+    unstr=OCR(imagen);
+    str=lower(unstr);
+    pause(1);
+    
+        for i=1:length(str)
+        disp(str(i));
+        arduino=serial('COM4','BaudRate',9600); % create serial communication object 
+        fopen(arduino); % initiate arduino communication
+        pause(0.5);
+        text=input('Converted.. transmiting now...? Enter k ','s');
+        text=str(i);
+        fprintf(arduino,'%s\n',text,'sync'); % send answer variable content to arduino
+        text2=input('Received? Enter k ','s');
+        pause(0.5);
+        fclose(arduino);
+        end
+end
+

OCRDemoMatlab-master/FINAL_OPTO.m

@@ -0,0 +1,89 @@
+function str=OCR(imagen)
+% OCR (Optical Character Recognition).
+warning off %#ok<WNOFF>
+close all
+% READ THE IMAGE
+%imagen=imread('sentence.bmp');
+
+% SHOW IMAGE
+imagen1 = imagen;
+figure,imshow(imagen1);
+title('INPUT IMAGE WITH NOISE')
+% Convert to gray scale
+%if size(imagen,3)==3 %RGB image
+%    imagen=rgb2gray(imagen);
+%end
+
+% CONVERT THE IMAGE TO GRAYSCALE FOR EASIER READING
+threshold = graythresh(imagen);
+imagen =~im2bw(imagen,threshold);
+imagen2 = imagen;
+figure,imshow(imagen2);
+word=[ ];
+str=string(100);
+i=1;
+re=imagen;
+
+
+
+fid = fopen('text.txt', 'wt');  %OPEN TEXT FILE FOR THE OUTPUT
+load templates                  %LOAD THE TEMPLATES OF THE LETTERS
+global templates
+num_letras=size(templates,2);   %Compute the number of letters in template file
+while 1
+    %'lines_crop':SPLITS THE WHOLE PIC INTO LINES
+    [fl re]=lines_crop(re);     %fl= first line, re= remaining image
+    imgn=fl;
+    n=0;
+%     figure,imshow(fl);pause(0.5)%SHOWS EACH LINE
+    spacevector = [];           %TOTAL NMBER OF SPACES   
+    rc = fl;              
+    
+    while 1
+        %'letter_crop' SEPARATES EACH LETTER FROM THE IMAGE
+       [fc rc space]=letter_crop(rc);  %fc =  first letter in the line
+                                       %rc =  remaining cropped line
+                                       %space = space between the letter
+                                       %   cropped and the next letter
+      
+       %figure,imshow(fc);pause(0.5)   %SHOW LETTERS ONE BY ONE
+       img_r = imresize(fc,[42 24]);   %RESIZE FOR CORRELATION
+       n = n + 1;
+       spacevector(n)=space;
+       
+       %'read_letter' CORRELATION IS DONE TO FIND THE CORRECT LETTER
+       %given in the folder 'letters_numbers'
+       letter = read_letter(img_r,num_letras);
+       word = [word letter];            %LETTER CONCATENATION
+       
+       if isempty(rc)  %breaks loop when there are no more characters
+           break;
+        end
+    end
+         
+    max_space = max(spacevector);
+    no_spaces = 0;                      %NUMBER OF SPACES
+    
+     for x= 1:n                         %LOOP TO FIND SPACES BETWEEN CHARACTERS
+       if spacevector(x+no_spaces)> (0.75 * max_space)
+          no_spaces = no_spaces + 1;
+            for m = x:n
+              word(n+x-m+no_spaces)=word(n+x-m+no_spaces-1);
+            end
+           word(x+no_spaces) = ' ';
+           spacevector = [0 spacevector];
+       end
+     end
+   
+    fprintf(fid,'%s\n',word);       %WRITE WORD READ INTO TEXT FILE
+    str(i)=word;
+    i=i+1;
+    word=[ ];
+    %BREAK LOOP WHEN SENTENCE ENDS
+    if isempty(re)  %See variable 're' in Fcn 'lines'
+        break
+    end                             
+end
+fclose(fid);
+% winopen('text.txt')                 %OPEN THE TEXT FILE TO DISPLAY
+end

OCRDemoMatlab-master/OCR.m

@@ -0,0 +1,24 @@
+clc
+clear all
+close all
+
+[file,path] = uigetfile({'*.bmp;*.png'});
+if isequal(file,0)
+   disp('User selected Cancel')
+else
+    imagen=imread(file);
+%     imagen = imflatfield(imagen,30);
+%     imagen=imsharpen(imagen);
+    unstr=OCR(imagen);
+    str=lower(unstr);
+    
+%     pause(1);
+
+%     %SPEAK OUT TEXT
+    for i=1:length(str)
+            disp(str(i));
+%         Speak(obj,str(i));
+%         pause(0.5);
+    end
+ end
+