Image Class¶
Description¶
Image stores an image data and represents an image in memory.
Image raw data can be accessed as byte array. The width/height/etc information are also accessible.
You can always access image data since the first version of EasyAR Sense.
You can do this in iOS
#import <easyar/buffer.oc.h>
#import <easyar/image.oc.h>
easyar_OutputFrame * outputFrame = [outputFrameBuffer peek];
if (outputFrame != nil) {
easyar_Image * i = [[outputFrame inputFrame] image];
easyar_Buffer * b = [i buffer];
char * bytes = calloc([b size], 1);
memcpy(bytes, [b data], [b size]);
// use bytes here
free(bytes);
}
Or in Android
import cn.easyar.*;
OutputFrame outputFrame = outputFrameBuffer.peek();
if (outputFrame != null) {
InputFrame inputFrame = outputFrame.inputFrame();
Image i = inputFrame.image();
Buffer b = i.buffer();
byte[] bytes = new byte[b.size()];
b.copyToByteArray(0, bytes, 0, bytes.length);
// use bytes here
b.dispose();
i.dispose();
inputFrame.dispose();
outputFrame.dispose();
}
Constructor¶
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C:
void easyar_Image__ctor(easyar_Buffer * buffer, easyar_PixelFormat format, int width, int height, easyar_Image * * Return)
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Traditional C++:
Image(Buffer * buffer, PixelFormat format, int width, int height)
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-
Java:
public Image(@Nonnull Buffer buffer, int format, int width, int height)
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-
Kotlin:
constructor(buffer: Buffer, format: Int, width: Int, height: Int)
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-
Objective-C:
+ (easyar_Image *) create:(easyar_Buffer *)buffer format:(easyar_PixelFormat)format width:(int)width height:(int)height
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-
Swift:
public convenience init(_ buffer: Buffer, _ format: PixelFormat, _ width: Int32, _ height: Int32)
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-
C#:
public Image(Buffer buffer, PixelFormat format, int width, int height)
¶
buffer¶
Returns buffer inside image. It can be used to access internal data of image. The content of Buffer shall not be modified, as they may be accessed from other threads.
-
C:
void easyar_Image_buffer(const easyar_Image * This, easyar_Buffer * * Return)
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-
Traditional C++:
void buffer(Buffer * * Return)
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-
Java:
public @Nonnull Buffer buffer()
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-
Kotlin:
fun buffer(): Buffer
¶
-
Objective-C:
- (easyar_Buffer *)buffer
¶
-
Swift:
public func buffer() -> Buffer
¶
-
C#:
public virtual Buffer buffer()
¶
format¶
Returns image format.
-
C:
easyar_PixelFormat easyar_Image_format(const easyar_Image * This)
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-
C++17:
PixelFormat format()
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-
Traditional C++:
PixelFormat format()
¶
-
Java:
public int format()
¶
-
Kotlin:
fun format(): Int
¶
-
Objective-C:
- (easyar_PixelFormat)format
¶
-
Swift:
public func format() -> PixelFormat
¶
-
C#:
public virtual PixelFormat format()
¶