试试这个
For Sepia effect
public Bitmap toSephia(Bitmap bmpOriginal)
{
int width, height, r,g, b = 0, c, gry;
height = bmpOriginalgetHeight();
width = bmpOriginalgetWidth();
int depth = 20;
Bitmap bmpSephia = BitmapcreateBitmap(width, height, BitmapConfigARGB_8888);
Canvas canvas = new Canvas(bmpSephia);
Paint paint = new Paint();
ColorMatrix cm = new ColorMatrix();
cmsetScale(3f, 3f, 3f, 10f);
ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
paintsetColorFilter(f);
canvasdrawBitmap(bmpOriginal, 0, 0, paint);
int [] pixelArray = new int [bmpOriginalgetWidth()bmpOriginalgetHeight()] ;
bmpOriginalgetPixels(pixelArray, 0, bmpOriginalgetWidth(), 0, 0, bmpOriginalgetWidth(), bmpOriginalgetHeight());
for(int i=0 ; i<pixelArraylength; i ++){
r = (pixelArray[i] >> 16) & 0xFF; //Isolate Red Channel value
g = (pixelArray[i] >> 8) & 0xFF; //Isolate Green Channel value
g = pixelArray[i] & 0xFF; //Isolate Blue Channel value
gry = (r + g + b) / 3;
r = g = b = gry;
r = r + (depth 2);
g = g + depth;
if(r > 255) {
r = 255;
}
if(g > 255) {
g = 255;
}
pixelArray[i] = Colorrgb(r, g, b) ;
}
return BitmapcreateBitmap(pixelArray, width, height, ConfigARGB_8888) ;
}
For Grayscale effect
public Bitmap toGrayscale(Bitmap bmpOriginal)
{
int width, height;
height = bmpOriginalgetHeight();
width = bmpOriginalgetWidth();
Bitmap bmpGrayscale = BitmapcreateBitmap(width, height, BitmapConfigRGB_565);
Canvas c = new Canvas(bmpGrayscale);
Paint paint = new Paint();
ColorMatrix cm = new ColorMatrix();
cmsetSaturation(0);
ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
paintsetColorFilter(f);
cdrawBitmap(bmpOriginal, 0, 0, paint);
return bmpGrayscale;
}
本来就是这么做的，还让我怎么改，肯定答案一样，而且我的更全面，是有图例明示的
一般SDK中都会带有一些示例程序，说明具体用法，Android SDK也是如此。它提供了一些ApiDemo示例，详细说明了Android中主要API，分为以下几大类：
1、App
2、Content
3、Graphics
4、Media
5、OS
6、Text
7、Views
每个大类又分为几个小类，一共大约有200多个实例，涵盖了Android OS API的各个方面。下面是所有示例的列表：
App/Activity/Animation
App/Activity/Custom Dialog
App/Activity/Custom Title
App/Activity/Dialog
App/Activity/Forwarding
App/Activity/Hello World
App/Activity/Persistent State
App/Activity/QuickContactsDemo
App/Activity/Receive Result
App/Activity/Redirection
App/Activity/Reorder Activities
App/Activity/Save & Restore State
App/Activity/SetWallpaper
App/Activity/Translucent
App/Activity/Translucent Blur
App/Activity/Wallpaper
App/Alarm/Alarm Controller
App/Alarm/Alarm Service
App/Device Admin
App/Dialog
App/Intents
App/Launcher Shortcuts
App/Menu/Inflate from XML
App/Notification/IncomingMessage
App/Notification/Notifying Service Controller
App/Notification/NotifyWithText
App/Notification/Status Bar
App/Preferences/1 Preferences from XML
App/Preferences/2 Launching preferences
App/Preferences/3 Preference dependencies
App/Preferences/4 Default values
App/Preferences/5 Preferences from code
App/Preferences/6 Advanced preferences
App/Search/Invoke Search
App/Search/Query Search Results
App/Service/Foreground Service Controller
App/Service/Local Service Binding
App/Service/Local Service Controller
App/Service/Messenger Service
App/Service/Remote Service Binding
App/Service/Remote Service Controller
App/Service/Service Start Arguments Controller
App/Text-To-Speech
App/Voice Recognition
Content/Assets/Read Asset
Content/Resources/Resources
Content/Resources/Styled Text
Content/Storage/External Storage
Graphics/AlphaBitmap
Graphics/AnimateDrawables
Graphics/Arcs
Graphics/BitmapDecode
Graphics/BitmapMesh
Graphics/BitmapPixels
Graphics/CameraPreview
Graphics/Clipping
Graphics/ColorFilters
Graphics/ColorMatrix
Graphics/Compass
Graphics/CreateBitmap
Graphics/Density
Graphics/Drawable/GradientDrawable
Graphics/Drawable/ShapeDrawable
Graphics/FingerPaint
Graphics/Layers
Graphics/MeasureText
Graphics/OpenGL ES/Compressed Texture
Graphics/OpenGL ES/Cube Map
Graphics/OpenGL ES/Frame Buffer Object
Graphics/OpenGL ES/GLSurfaceView
Graphics/OpenGL ES/Kube
Graphics/OpenGL ES/Matrix Palette Skinning
Graphics/OpenGL ES/OpenGL ES 20
Graphics/OpenGL ES/Sprite Text
Graphics/OpenGL ES/Textured Triangle
Graphics/OpenGL ES/Touch Rotate
Graphics/OpenGL ES/Translucent GLSurfaceView
Graphics/PathEffects
Graphics/PathFillTypes
Graphics/Patterns
Graphics/Pictures
Graphics/Points
Graphics/PolyToPoly
Graphics/PurgeableBitmap/NonPurgeable
Graphics/PurgeableBitmap/Purgeable
Graphics/Regions
Graphics/RoundRects
Graphics/ScaleToFit
Graphics/SensorTest
Graphics/SurfaceView Overlay
Graphics/Sweep
Graphics/Text Align
Graphics/Touch Paint
Graphics/Typefaces
Graphics/UnicodeChart
Graphics/Vertices
Graphics/Xfermodes
Media/MediaPlayer
Media/VideoView
OS/Morse Code
OS/Sensors
OS/SMS Messaging
Text/Linkify
Text/LogTextBox
Text/Marquee
Views/Animation/3D Transition
Views/Animation/Interpolators
Views/Animation/Push
Views/Animation/Shake
Views/Auto Complete/1 Screen Top
Views/Auto Complete/2 Screen Bottom
Views/Auto Complete/3 Scroll
Views/Auto Complete/4 Contacts
Views/Auto Complete/5 Contacts with Hint
Views/Auto Complete/6 Multiple items
Views/Buttons
Views/Chronometer
Views/Controls/1 Light Theme
Views/Controls/2 Default Theme
Views/Custom
Views/Date Widgets/1 Dialog
Views/Date Widgets/2 Inline
Views/Expandable Lists/1 Custom Adapter
Views/Expandable Lists/2 Cursor (People)
Views/Expandable Lists/3 Simple Adapter
Views/Focus/1 Vertical
Views/Focus/2 Horizontal
Views/Focus/3 Circular
Views/Focus/4 Internal Selection
Views/Gallery/1 Photos
Views/Gallery/2 People
Views/Grid/1 Icon Grid
Views/Grid/2 Photo Grid
Views/ImageButton
Views/ImageSwitcher
Views/ImageView
Views/Layout Animation/1 Grid Fade
Views/Layout Animation/2 List Cascade
Views/Layout Animation/3 Reverse Order
Views/Layout Animation/4 Randomize
Views/Layout Animation/5 Grid Direction
Views/Layout Animation/6 Wave Scale
Views/Layout Animation/7 Nested Animations
Views/Layouts/Baseline/1 Top
Views/Layouts/Baseline/2 Bottom
Views/Layouts/Baseline/3 Center
Views/Layouts/Baseline/4 Everywhere
Views/Layouts/Baseline/5 Multi-line
Views/Layouts/Baseline/6 Relative
Views/Layouts/Baseline/Nested Example 1
Views/Layouts/Baseline/Nested Example 2
Views/Layouts/Baseline/Nested Example 3
Views/Layouts/LinearLayout/1 Vertical
Views/Layouts/LinearLayout/10 Background Image
Views/Layouts/LinearLayout/2 Vertical (Fill Screen)
Views/Layouts/LinearLayout/3 Vertical (Padded)
Views/Layouts/LinearLayout/4 Horizontal
Views/Layouts/LinearLayout/5 Simple Form
Views/Layouts/LinearLayout/6 Uniform Size
Views/Layouts/LinearLayout/7 Fill Parent
Views/Layouts/LinearLayout/8 Gravity
Views/Layouts/LinearLayout/9 Layout Weight
Views/Layouts/RelativeLayout/1 Vertical
Views/Layouts/RelativeLayout/2 Simple Form
Views/Layouts/ScrollView/1 Short
Views/Layouts/ScrollView/2 Long
Views/Layouts/ScrollView/3 Internal Selection
Views/Layouts/TableLayout/01 Basic
Views/Layouts/TableLayout/02 Empty Cells
Views/Layouts/TableLayout/03 Long Content
Views/Layouts/TableLayout/04 Stretchable
Views/Layouts/TableLayout/05 Spanning and Stretchable
Views/Layouts/TableLayout/06 More Spanning and Stretchable
Views/Layouts/TableLayout/07 Column Collapse
Views/Layouts/TableLayout/08 Toggle Stretch
Views/Layouts/TableLayout/09 Toggle Shrink
Views/Layouts/TableLayout/10 Simple Form
Views/Layouts/TableLayout/11 Gravity
Views/Layouts/TableLayout/12 Cell Spanning
Views/Lists/1 Array
Views/Lists/10 Single choice list
Views/Lists/11 Multiple choice list
Views/Lists/12 Transcript
Views/Lists/13 Slow Adapter
Views/Lists/14 Efficient Adapter
Views/Lists/2 Cursor (People)
Views/Lists/3 Cursor (Phones)
Views/Lists/4 ListAdapter
Views/Lists/5 Separators
Views/Lists/6 ListAdapter Collapsed
Views/Lists/7 Cursor (Phones)
Views/Lists/8 Photos
Views/Lists/9 Array (Overlay)
Views/Progress Bar/1 Incremental
Views/Progress Bar/2 Smooth
Views/Progress Bar/3 Dialogs
Views/Progress Bar/4 In Title Bar
Views/Radio Group
Views/Rating Bar
Views/ScrollBars/1 Basic
Views/ScrollBars/2 Fancy
Views/ScrollBars/3 Style
Views/Seek Bar
Views/Spinner
Views/Tabs/Content By Factory
Views/Tabs/Content By Id
Views/Tabs/Content By Intent
Views/TextSwitcher
Views/Visibility
Views/WebView
本示例解读系列将逐个介绍每个示例中涉及到的知识及相关类的用法
首先是使用Eclipse创建一个ApiDemo示例工程：File ->New Android Project 选择Create project from existing sample （不同Android版本有对应的ApiDemo示例）。
Bitmap bmp = new Bitmap(100, 100);
using (Graphics g = GraphicsFromImage(bmp))
{
gFillEllipse(BrushesRed, new Rectangle(0, 0, 80, 80));
gFillRectangle(new SolidBrush(ColorFromArgb(128, ColorGreen)), new Rectangle(20, 20, 80, 80));
}
eGraphicsDrawImage(bmp, new Point(10, 10));
//简单的
ControlPaintDrawImageDisabled(eGraphics, bmp, 120, 10, ColorWhite);
//用颜色矩阵
SystemDrawingImagingImageAttributes attr = new SystemDrawingImagingImageAttributes();
float[][] colorMatrixElements = {
new float[] {33f, 33f, 33f, 0, 0}, // r = (r+g+b)/3
new float[] {33f, 33f, 33f, 0, 0}, // g = (r+g+b)/3
new float[] {33f, 33f, 33f, 0, 0}, // b = (r+g+b)/3
new float[] {0, 0, 0, 1, 0}, // alpha scaling factor of 1
new float[] {0, 0, 0, 0, 1}}; //
SystemDrawingImagingColorMatrix matrix = new SystemDrawingImagingColorMatrix(colorMatrixElements);
attrSetColorMatrix(matrix);
eGraphicsDrawImage(bmp, new Rectangle(10, 120, 100, 100), 0, 0, 100, 100, GraphicsUnitPixel, attr);
myeclipse中工程很多怎样创建WorkingSet
在myeclipse中若有太多的项目，此时看起来会非常的痛苦，现在需要创建workingset。
就是把相关连的工程放在一个workSet 中 再把需要显示出来的打钩，这样Myeclipse工程那一部分会看起来很清楚干净。
在Myeclipse中，当项目比较多的时候，可以用WorkingSet将这些项目分类，这样在Package Explorer选项卡中可以使各类项目一目了然。
创建步骤：
点击Package Explorer右面的小三角
然后在d出的菜单中选择“Configure Working Sets
点击进行WorkingSet的创建后编辑。
怎样用myeclipse创建php工程
安装eclipse的pdt插件就可以的
只是通常没有人 在java环境下同时再做php的开发的
所以一般都是单独各用各的ide的
myeclipse 中怎么创建jpa工程参考下面方法：
打开MyEclipse,点击File->New->Project,d出界面。输入项目名myJpa，版本选择20，直接点击finish。再次d出一个对话框，点击->否，jpa项目创建完成后的界面和persistencexml文件就出来了。下载Hibernate的jar包。添加hibernate的jar包。
右键项目名myJpa->New->Floder,输入lib，完成。拷贝jar包到lib文件夹下，注意不要忘记数据库驱动jar包。
配置persistencexml文件
1数据库连接信息
2hibernate基本信息
创建javaBean对象类 Person
创建测试类JpaTestjava,
运行测试类，查看数据库
测试成功！
怎样在eclipse中创建web工程方法/步骤
点击eclipse图标，打开笔记本电脑的eclipse应用程序
开始创建第一个web工程，点击文件，展开二级目录，选择下拉列表的第三个选项Dynamic Project，点击创建新的一个工程
进入设置，首先是Project name 的命名 ，这里以test命名，然后点击右下角的下一步
进入下一个页面，直接在点击下一步即可
进入下一个页面，勾选Generate webxml deployment descriptor 点击完成
创建成功之后在主页面的左边出现test工程
右击test工程，展开新建选项，选择JSP File
进行命名，然后直接点击完成即可
成功创建第一个JSP文件。
怎样创建ApiDemo示例工程一般SDK中都会带有一些示例程序，说明具体用法，Android SDK也是如此。它提供了一些ApiDemo示例，详细说明了Android中主要API，分为以下几大类：
1、App
2、Content
3、Graphics
4、Media
5、OS
6、Text
7、Views
每个大类又分为几个小类，一共大约有200多个实例，涵盖了Android OS API的各个方面。下面是所有示例的列表：
App/Activity/Animation
App/Activity/Custom Dialog
App/Activity/Custom Title
App/Activity/Dialog
App/Activity/Forwarding
App/Activity/Hello World
App/Activity/Persistent State
App/Activity/QuickContactsDemo
App/Activity/Receive Result
App/Activity/Redirection
App/Activity/Reorder Activities
App/Activity/Save & Restore State
App/Activity/SetWallpaper
App/Activity/Translucent
App/Activity/Translucent Blur
App/Activity/Wallpaper
App/Alarm/Alarm Controller
App/Alarm/Alarm Service
App/Device Admin
App/Dialog
App/Intents
App/Launcher Shortcuts
App/Menu/Inflate from XML
App/Notification/IningMessage
App/Notification/Notifying Service Controller
App/Notification/NotifyWithText
App/Notification/Status Bar
App/Preferences/1 Preferences from XML
App/Preferences/2 Launching preferences
App/Preferences/3 Preference dependencies
App/Preferences/4 Default values
App/Preferences/5 Preferences from code
App/Preferences/6 Advanced preferences
App/Search/Invoke Search
App/Search/Query Search Results
App/Service/Foreground Service Controller
App/Service/Local Service Binding
App/Service/Local Service Controller
App/Service/Messenger Service
App/Service/Remote Service Binding
App/Service/Remote Service Controller
App/Service/Service Start Arguments Controller
App/Text-To-Speech
App/Voice Recognition
Content/Assets/Read Asset
Content/Resources/Resources
Content/Resources/Styled Text
Content/Storage/External Storage
Graphics/AlphaBitmap
Graphics/AnimateDrawables
Graphics/Arcs
Graphics/BitmapDecode
Graphics/BitmapMesh
Graphics/BitmapPixels
Graphics/CameraPreview
Graphics/Clipping
Graphics/ColorFilters
Graphics/ColorMatrix
Graphics/Compass
Graphics/CreateBitmap
Graphics/Density
Graphics/Drawable/GradientDrawable
Graphics/Drawable/ShapeDrawable
Graphics/FingerPaint
Graphics/Layers
Graphics/MeasureText
Graphics/OpenGL ES/Compressed Texture
Graphics/OpenGL ES/Cube Map
Graphics/OpenGL ES/Frame Buffer Object
Graphics/OpenGL ES/GLSurfaceView
Graphics/OpenGL ES/Kube
Graphics/OpenGL ES/Matrix Palette Skinning
Graphics/OpenGL ES/OpenGL ES 20
Graphics/OpenGL ES/Sprite Text
Graphics/OpenGL ES/Textured Triangle
Graphics/OpenGL ES/Touch Rotate
Graphics/OpenGL ES/Translucent GLSurfaceView
Graphics/PathEffects
Graphics/PathFillTypes
Graphics/Patterns
Graphics/Pictures
Graphics/Points
Graphics/PolyToPoly
Graphics/PurgeableBitmap/NonPurgeable
Graphics/PurgeableBitmap/Purgeable
Graphics/Regions
Graphics/RoundRects
Graphics/ScaleToFit
Graphics/SensorTest
Graphics/SurfaceView Overlay
Graphics/Sweep
Graphics/Text Align
Graphics/Touch Paint
Graphics/Typefaces
Graphics/UnicodeChart
Graphics/Vertices
Graphics/Xfermodes
Media/MediaPlayer
Media/VideoView
OS/Morse Code
OS/Sensors
OS/SMS Messaging
Text/Linkify
Text/LogTextBox
Text/Marquee
Views/Animation/3D Transition
Views/Animation/Interpolators
Views/Animation/Push
Views/Animation/Shake
Views/Auto Complete/1 Screen Top
Views/Auto Complete/2 Screen Bottom
Views/Auto Complete/3 Scroll
Views/Auto Complete/4 Contacts
Views/Auto Complete/5 Contacts with Hint
Views/Auto Complete/6 Multiple items
Views/Buttons
Views/Chronometer
Views/Controls/1 Light Theme
Views/Controls/2 Default Theme
Views/Custom
Views/Date Widgets/1 Dialog
Views/Date Widgets/2 Inline
Views/Expandable Lists/1 Custom Adapter
Views/Expandable Lists/2 Cursor (People)
Views/Expandable Lists/3 Simple Adapter
Views/Focus/1 Vertical
Views/Focus/2 Horizontal
Views/Focus/3 Circular
Views/Focus/4 Internal Selection
Views/Gallery/1 Photos
Views/Gallery/2 People
Views/Grid/1 Icon Grid
Views/Grid/2 Photo Grid
Views/ImageButton
Views/ImageSwitcher
Views/ImageView
Views/Layout Animation/1 Grid Fade
Views/Layout Animation/2 List Cascade
Views/Layout Animation/3 Reverse Order
Views/Layout Animation/4 Randomize
Views/Layout Animation/5 Grid Direction
Views/Layout Animation/6 Wave Scale
Views/Layout Animation/7 Nested Animations
Views/Layouts/Baseline/1 Top
Views/Layouts/Baseline/2 Bottom
Views/Layouts/Baseline/3 Center
Views/Layouts/Baseline/4 Everywhere
Views/Layouts/Baseline/5 Multi-line
Views/Layouts/Baseline/6 Relative
Views/Layouts/Baseline/Nested Example 1
Views/Layouts/Baseline/Nested Example 2
Views/Layouts/Baseline/Nested Example 3
Views/Layouts/LinearLayout/1 Vertical
Views/Layouts/LinearLayout/10 Background Image
Views/Layouts/LinearLayout/2 Vertical (Fill Screen)
Views/Layouts/LinearLayout/3 Vertical (Padded)
Views/Layouts/LinearLayout/4 Horizontal
Views/Layouts/LinearLayout/5 Simple Form
Views/Layouts/LinearLayout/6 Uniform Size
Views/Layouts/LinearLayout/7 Fill Parent
Views/Layouts/LinearLayout/8 Gravity
Views/Layouts/LinearLayout/9 Layout Weight
Views/Layouts/RelativeLayout/1 Vertical
Views/Layouts/RelativeLayout/2 Simple Form
Views/Layouts/ScrollView/1 Short
Views/Layouts/ScrollView/2 Long
Views/Layouts/ScrollView/3 Internal Selection
Views/Layouts/TableLayout/01 Basic
Views/Layouts/TableLayout/02 Empty Cells
Views/Layouts/TableLayout/03 Long Content
Views/Layouts/TableLayout/04 Stretchable
Views/Layouts/TableLayout/05 Spanning and Stretchable
Views/Layouts/TableLayout/06 More Spanning and Stretchable
Views/Layouts/TableLayout/07 Column Collapse
Views/Layouts/TableLayout/08 Toggle Stretch
Views/Layouts/TableLayout/09 Toggle Shrink
Views/Layouts/TableLayout/10 Simple Form
Views/Layouts/TableLayout/11 Gravity
Views/Layouts/TableLayout/12 Cell Spanning
Views/Lists/1 Array
Views/Lists/10 Single choice list
Views/Lists/11 Multiple choice list
Views/Lists/12 Transcript
Views/Lists/13 Slow Adapter
Views/Lists/14 Efficient Adapter
Views/Lists/2 Cursor (People)
Views/Lists/3 Cursor (Phones)
Views/Lists/4 ListAdapter
Views/Lists/5 Separators
Views/Lists/6 ListAdapter Collapsed
Views/Lists/7 Cursor (Phones)
Views/Lists/8 Photos
Views/Lists/9 Array (Overlay)
Views/Progress Bar/1 Incremental
Views/Progress Bar/2 Smooth
Views/Progress Bar/3 Dialogs
Views/Progress Bar/4 In Title Bar
Views/Radio Group
Views/Rating Bar
Views/ScrollBars/1 Basic
Views/ScrollBars/2 Fancy
Views/ScrollBars/3 Style
Views/Seek Bar
Views/Spinner
Views/Tabs/Content By Factory
Views/Tabs/Content By Id
Views/Tabs/Content By Intent
Views/TextSwitcher
Views/Visibility
Views/WebView
本示例解读系列将逐个介绍每个示例中涉及到的知识及相关类的用法
首先是使用Eclipse创建一个ApiDemo示例工程：File ->New Android Project 选择Create project from existing sample （不同Android版本有对应的ApiDemo示例）。
一般SDK中都会带有一些示例程序,说明具体用法,Android SDK也是如此。它提供了一些ApiDemo示例,详细说明了Android中主要API,分为以下几大类: 1、App 2、Co ,Android
我们在前面介绍过Hello world示例,这里的Hello world的Layout定义稍有不同: ApiDemo示例中的将Hello world显示的屏幕中间。gravity类似于其它平台上的alignment(对齐)。
（c++新手）如何创建c++工程？怎样运行创建工程？创建工程有什么意义？1建工程
new->选择标签projects->在project name中填写你的工程名（例如myproject）->双击win32 console Application->选择一个空的工程->finish->ok
2见文件
new->files->add to project选中在file 中输入文件名（注意：用C语言写文件明后要加c例如文件名myfilec,C++写就不需要直接就myfile或者myfilecpp）->双击C++ SOurce file
3进入编辑界面（）
C语言例子：
#include<stdioh>包含文件头
void main()
{
print("hello c\n");输出hello c\n换行
}
C++:
#include<iostream>包含文件头
using namespace std;命名空间
void main()
{
cout<<"hello c"<<endl;输出hello c，endl换行
}
4运行
1先编译
找到工具栏上有个感叹号样向左数3个图标，就是有个小蓝色向下的箭头点击下，看有没有错误。
2运行
没有错误就可以运行了——就是点下感叹号
3就出现DOS界面了，上面显示hello c
后为注释
会了别忘了分呀，或者最佳答案呵呵
意义：一个工程可能会有很多文件
怎样使用hibernate创建java工程自从引入了Annotation，在项目中使用Hibernate不再那么纠结：一方面要写java类，要关心配置文件如何调用，另一方面要担心数据库的改动，或者考虑是否支持一些功能。现在用annotation可以从java类开始着手，定义成员、定义表字段影射、利用Hibernate生成数据库表和约束等等，完全符合程序猿的习惯。当然，牛逼的架构师可以从UML开始，一气呵成
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