Dustbiin

 Object detection in python by using OpenCv and Numpy -  Object Detection is a new vision technique using camera. It give us ability to identify objects in a cam video and also in an image.  with this kind of technique we identify the object on the basis of color, shape and size etc. And it is also use for count the object in an image or videos. Object detection is also user for tracking an object current location.  Code for basic object detection on the basis of color- import numpy as np import cv2 def nothing (x): print (x) #user for live cam object detection cap = cv2.VideoCapture( 0 ) cv2.namedWindow( 'Tracking' ) cv2.createTrackbar( 'LH' , 'Tracking' , 0 , 255 , nothing) cv2.createTrackbar( 'LS' , 'Tracking' , 0 , 255 , nothing) cv2.createTrackbar( 'LV' , 'Tracking' , 0 , 255 , nothing) cv2.createTrackbar( 'UH' , 'Tracking' , 255 , 255 , nothing) cv2.createTrackbar( 'US' , 'Tracking' , 255...

Their is many way to read data for data for digital signature but hear we discus reading data from .pfx file -  code for read .pfx file - import java.io.FileInputStream; import java.security.KeyStore; import java.security.cert.X509Certificate; import java.util.Date; import java.util.Enumeration; import javax.net.ssl.KeyManagerFactory; public class PdfDemo { public static void checkExpire() { try { KeyManagerFactory kmf = javax.net.ssl.KeyManagerFactory.getInstance( "SunX509" ); KeyStore keystore = KeyStore.getInstance( "PKCS12" ); char[] password = "123456".toCharArray(); keystore.load( new FileInputStream( "demo.pfx" ), password ); //keystore.load(new FileInputStream(certificate), password); kmf.init( keystore, password ); Enumeration<String> aliases = keystore.aliases(); while ( aliases.hasMoreElements() ) { ...

 Creating signature field in iText PDF -  First need to add dependency  <dependency> <groupId>com.itextpdf.tool</groupId> <artifactId>xmlworker</artifactId> <version>5.4.5</version> </dependency> <dependency> <groupId>com.itextpdf</groupId> <artifactId>itextpdf</artifactId> <version>5.4.5</version> </dependency> <dependency> <groupId>org.bouncycastle</groupId> <artifactId>bcprov-jdk15on</artifactId> <version>1.60</version> </dependency> <dependency> <groupId>org.bouncycastle</groupId> <artifactId>bcpkix-jdk15on</artifactId> <version>1.60</version> <type>jar</type> <!-- <scope>compile</scope> <optional>true</optional> --> </dependency> For certified you pdf document by digital sign first you need to...

Create basic design by using connecting dot's using your mouse- I have been create this by using mouse event check out the code below- use Python, OpenCv , NumPy import numpy as np import cv2 def click_event(event , x , y , flags , param): if event == cv2.EVENT_LBUTTONDOWN: print(x , " , " , y) font = cv2.FONT_HERSHEY_SIMPLEX strXY = str(x) + ' , ' + str(y) # cv2.putText(img,strXY, (x, y), font, .1, (255, 255, 0), 2) cv2.circle(img , (x , y) , 3 , ( 0 , 0 , 255 ) , - 1 ) points.append((x , y)) if len(points) >= 2 : cv2.circle(img , points[- 1 ] , 3 , ( 0 , 0 , 255 ) , - 1 ) # cv2.putText(img,strXY, points[-1], font, .1, (255, 255, 0), 2) cv2.line(img , points[- 2 ] , points[- 1 ] , ( 0 , 0 , 255 ) , 1 ) cv2.imshow( "Image" , img) points = [] img = np.zeros(( 512 , 512 , 3 )) cv2.imshow( "Image" , img) cv2.setMouseCallback( 'Image' ...

Create custom color for cell background by using java color class Create custom color- XSSFWorkbook workBook = new XSSFWorkbook (); IndexedColorMap colorMap = workbook.getStylesSource().getIndexedColors(); Font tableHeadOneFontStyle = workbook.createFont();  tableHeadOneFontStyle.setBold( true ); tableHeadOneFontStyle.setColor( IndexedColors.BLACK.getIndex() ); XSSFCellStyle tableHeaderOneColOneStyle = workbook.createCellStyle(); tableHeaderOneColOneStyle.setFont( tableHeadOneFontStyle ); tableHeaderOneColOneStyle.setFillForegroundColor( new XSSFColor( new java.awt.Color( 255, 231, 153 ), colorMap ) ); tableHeaderOneColOneStyle.setFillPattern( FillPatternType.SOLID_FOREGROUND ); tableHeaderOneColOneStyle = setLeftRightBorderColor( tableHeaderOneColOneStyle ); tableHeaderOneColOneStyle = alignCenter( tableHeaderOneColOneStyle );