com.adityaarora.liveedgedetection.util

Class ScanUtils

java.lang.Object

com.adityaarora.liveedgedetection.util.ScanUtils

public class ScanUtils
extends java.lang.Object

This class provides utilities for camera.

Constructor Summary

Constructors

Constructor and Description
ScanUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	compareFloats(float left, float right)
static int	configureCameraAngle(android.app.Activity activity)
static android.graphics.Bitmap	decodeBitmapFromFile(java.lang.String path, java.lang.String imageName)
static Quadrilateral	detectLargestQuadrilateral(org.opencv.core.Mat mat)
static android.hardware.Camera.Size	determinePictureSize(android.hardware.Camera.Size previewSize, java.lang.Iterable<? extends android.hardware.Camera.Size> pictureSizeList)
static int	dp2px(android.content.Context context, float dp)
static android.graphics.Bitmap	enhanceReceipt(android.graphics.Bitmap image, org.opencv.core.Point topLeft, org.opencv.core.Point topRight, org.opencv.core.Point bottomLeft, org.opencv.core.Point bottomRight)
static double	getMaxCosine(double maxCosine, org.opencv.core.Point[] approxPoints)
static android.hardware.Camera.Size	getOptimalPreviewSize(int w, int h, java.lang.Iterable<? extends android.hardware.Camera.Size> previewSizeList)
static java.util.ArrayList<android.graphics.PointF>	getPolygonDefaultPoints(android.graphics.Bitmap bitmap)
static boolean	isScanPointsValid(java.util.Map<java.lang.Integer,android.graphics.PointF> points)
static android.graphics.Bitmap	loadEfficientBitmap(byte[] data, int width, int height)
static android.graphics.Bitmap	resize(android.graphics.Bitmap image, int maxWidth, int maxHeight)
static android.graphics.Bitmap	resizeToScreenContentSize(android.graphics.Bitmap bm, int newWidth, int newHeight)
static java.lang.String[]	saveToInternalMemory(android.graphics.Bitmap bitmap, java.lang.String mFileDirectory, java.lang.String mFileName, android.content.Context mContext, int mQuality)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ScanUtils

public ScanUtils()

Method Detail

compareFloats

public static boolean compareFloats(float left,
                                    float right)

determinePictureSize

public static android.hardware.Camera.Size determinePictureSize(android.hardware.Camera.Size previewSize,
                                                                java.lang.Iterable<? extends android.hardware.Camera.Size> pictureSizeList)

getOptimalPreviewSize

public static android.hardware.Camera.Size getOptimalPreviewSize(int w,
                                                                 int h,
                                                                 java.lang.Iterable<? extends android.hardware.Camera.Size> previewSizeList)

configureCameraAngle

public static int configureCameraAngle(android.app.Activity activity)

detectLargestQuadrilateral

public static Quadrilateral detectLargestQuadrilateral(org.opencv.core.Mat mat)

getMaxCosine

public static double getMaxCosine(double maxCosine,
                                  org.opencv.core.Point[] approxPoints)

enhanceReceipt

public static android.graphics.Bitmap enhanceReceipt(android.graphics.Bitmap image,
                                                     org.opencv.core.Point topLeft,
                                                     org.opencv.core.Point topRight,
                                                     org.opencv.core.Point bottomLeft,
                                                     org.opencv.core.Point bottomRight)

saveToInternalMemory

public static java.lang.String[] saveToInternalMemory(android.graphics.Bitmap bitmap,
                                                      java.lang.String mFileDirectory,
                                                      java.lang.String mFileName,
                                                      android.content.Context mContext,
                                                      int mQuality)

decodeBitmapFromFile

public static android.graphics.Bitmap decodeBitmapFromFile(java.lang.String path,
                                                           java.lang.String imageName)

dp2px

public static int dp2px(android.content.Context context,
                        float dp)

loadEfficientBitmap

public static android.graphics.Bitmap loadEfficientBitmap(byte[] data,
                                                          int width,
                                                          int height)

resize

public static android.graphics.Bitmap resize(android.graphics.Bitmap image,
                                             int maxWidth,
                                             int maxHeight)

resizeToScreenContentSize

public static android.graphics.Bitmap resizeToScreenContentSize(android.graphics.Bitmap bm,
                                                                int newWidth,
                                                                int newHeight)

getPolygonDefaultPoints

public static java.util.ArrayList<android.graphics.PointF> getPolygonDefaultPoints(android.graphics.Bitmap bitmap)

isScanPointsValid

public static boolean isScanPointsValid(java.util.Map<java.lang.Integer,android.graphics.PointF> points)