Example Color Space - Revision history

Peter at 22:58, 17 January 2022

2022-01-17T22:58:17Z

← Older revision		Revision as of 22:58, 17 January 2022
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.37/examples/src/main/java/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.40/examples/src/main/java/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	public class ExampleColorSpace {		public class ExampleColorSpace {
	public static void main( String[] args ) {		public static void main( String[] args ) {
	BufferedImage image = UtilImageIO.~~loadImage~~(UtilIO.pathExample("sunflowers.jpg"));		BufferedImage image = UtilImageIO.loadImageNotNull(UtilIO.pathExample("sunflowers.jpg"));

	// Convert input image into a BoofCV RGB image		// Convert input image into a BoofCV RGB image
	Planar<GrayF32> rgb = ConvertBufferedImage.convertFromPlanar(image, null,true, GrayF32.class);		Planar<GrayF32> rgb = ConvertBufferedImage.convertFromPlanar(image, null, true, GrayF32.class);

	//---- convert RGB image into different color formats		//---- convert RGB image into different color formats
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	//---- Convert individual pixels into different formats		//---- Convert individual pixels into different formats
	float[] pixelHsv = new float[3];		float[] pixelHsv = new float[3];
	ColorHsv.rgbToHsv(10,50.6f,120,pixelHsv);		ColorHsv.rgbToHsv(10, 50.6f, 120, pixelHsv);
	System.out.printf("Found RGB->HSV = %5.2f %5.3f %5.1f\n",pixelHsv[0],pixelHsv[1],pixelHsv[2]);		System.out.printf("Found RGB->HSV = %5.2f %5.3f %5.1f\n", pixelHsv[0], pixelHsv[1], pixelHsv[2]);

	float[] pixelRgb = new float[3];		float[] pixelRgb = new float[3];
	ColorHsv.hsvToRgb(pixelHsv[0],pixelHsv[1],pixelHsv[2],pixelRgb);		ColorHsv.hsvToRgb(pixelHsv[0], pixelHsv[1], pixelHsv[2], pixelRgb);
	System.out.printf("Found HSV->RGB = %5.1f %5.1f %5.1f expected 10 50.6 120\n",		System.out.printf("Found HSV->RGB = %5.1f %5.1f %5.1f expected 10 50.6 120\n",
	pixelRgb[0],pixelRgb[1],pixelRgb[2]);		pixelRgb[0], pixelRgb[1], pixelRgb[2]);

	float[] pixelYuv = new float[3];		float[] pixelYuv = new float[3];
	ColorYuv.rgbToYuv(10,50.6f,120,pixelYuv);		ColorYuv.rgbToYuv(10, 50.6f, 120, pixelYuv);
	System.out.printf("Found RGB->YUV = %5.1f %5.1f %5.1f\n",pixelYuv[0],pixelYuv[1],pixelYuv[2]);		System.out.printf("Found RGB->YUV = %5.1f %5.1f %5.1f\n", pixelYuv[0], pixelYuv[1], pixelYuv[2]);

	ColorYuv.yuvToRgb(pixelYuv[0],pixelYuv[1],pixelYuv[2],pixelRgb);		ColorYuv.yuvToRgb(pixelYuv[0], pixelYuv[1], pixelYuv[2], pixelRgb);
	System.out.printf("Found YUV->RGB = %5.1f %5.1f %5.1f expected 10 50.6 120\n",		System.out.printf("Found YUV->RGB = %5.1f %5.1f %5.1f expected 10 50.6 120\n",
	pixelRgb[0],pixelRgb[1],pixelRgb[2]);		pixelRgb[0], pixelRgb[1], pixelRgb[2]);
	}		}
	}		}
	</syntaxhighlight>		</syntaxhighlight>

Peter at 02:14, 22 December 2020

2020-12-22T02:14:25Z

← Older revision		Revision as of 02:14, 22 December 2020
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.33/examples/src/main/java/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.37/examples/src/main/java/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	*/		*/
	public class ExampleColorSpace {		public class ExampleColorSpace {
			public static void main( String[] args ) {
	public static void main( String ~~args~~[] ) {
	BufferedImage image = UtilImageIO.loadImage(UtilIO.pathExample("sunflowers.jpg"));		BufferedImage image = UtilImageIO.loadImage(UtilIO.pathExample("sunflowers.jpg"));

Peter at 13:57, 15 March 2019

2019-03-15T13:57:30Z

← Older revision		Revision as of 13:57, 15 March 2019
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.27/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.33/examples/src/main/java/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	//---- convert RGB image into different color formats		//---- convert RGB image into different color formats
	Planar<GrayF32> hsv = rgb.createSameShape();		Planar<GrayF32> hsv = rgb.createSameShape();
	ColorHsv.~~rgbToHsv_F32~~(rgb, hsv);		ColorHsv.rgbToHsv(rgb, hsv);

	Planar<GrayF32> yuv = rgb.createSameShape();		Planar<GrayF32> yuv = rgb.createSameShape();
	ColorYuv.~~yuvToRgb_F32~~(rgb, yuv);		ColorYuv.yuvToRgb(rgb, yuv);

	//---- Convert individual pixels into different formats		//---- Convert individual pixels into different formats

Peter at 15:52, 17 August 2017

2017-08-17T15:52:51Z

← Older revision		Revision as of 15:52, 17 August 2017
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.23/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.27/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	Relevant Examples:		Relevant Examples:
	* [[Example_Color_Segmentation\| Color Segmentation]]		* [[Example_Color_Segmentation\| Color Segmentation]]

	~~Relevant Applets:~~
	* [[Applet Color Space\| Color Space]]

	= Example Code =		= Example Code =
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	// Convert input image into a BoofCV RGB image		// Convert input image into a BoofCV RGB image
	Planar<GrayF32> rgb = ConvertBufferedImage.~~convertFromMulti~~(image, null,true, GrayF32.class);		Planar<GrayF32> rgb = ConvertBufferedImage.convertFromPlanar(image, null,true, GrayF32.class);

	//---- convert RGB image into different color formats		//---- convert RGB image into different color formats

Peter at 04:43, 28 March 2016

2016-03-28T04:43:12Z

← Older revision		Revision as of 04:43, 28 March 2016
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	Example of how to convert between different color spaces in BoofCV. Either the whole image can be ~~coverted~~ or individual values.		Example of how to convert between different color spaces in BoofCV. Either the whole image can be converted or individual values.

	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.20/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.23/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	// Convert input image into a BoofCV RGB image		// Convert input image into a BoofCV RGB image
	~~MultiSpectral~~<~~ImageFloat32~~> rgb = ConvertBufferedImage.convertFromMulti(image, null,true, ~~ImageFloat32~~.class);		Planar<GrayF32> rgb = ConvertBufferedImage.convertFromMulti(image, null,true, GrayF32.class);

	//---- convert RGB image into different color formats		//---- convert RGB image into different color formats
	~~MultiSpectral~~<~~ImageFloat32~~> hsv = rgb.createSameShape();		Planar<GrayF32> hsv = rgb.createSameShape();
	ColorHsv.rgbToHsv_F32(rgb, hsv);		ColorHsv.rgbToHsv_F32(rgb, hsv);

	~~MultiSpectral~~<~~ImageFloat32~~> yuv = rgb.createSameShape();		Planar<GrayF32> yuv = rgb.createSameShape();
	ColorYuv.yuvToRgb_F32(rgb, yuv);		ColorYuv.yuvToRgb_F32(rgb, yuv);

Peter at 15:12, 9 November 2015

2015-11-09T15:12:20Z

← Older revision		Revision as of 15:12, 9 November 2015
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.19/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.20/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	public static void main( String args[] ) {		public static void main( String args[] ) {
	BufferedImage image = UtilImageIO.loadImage("~~../data/applet/~~sunflowers.jpg");		BufferedImage image = UtilImageIO.loadImage(UtilIO.pathExample("sunflowers.jpg"));

	// Convert input image into a BoofCV RGB image		// Convert input image into a BoofCV RGB image

Peter at 19:32, 19 September 2015

2015-09-19T19:32:22Z

← Older revision		Revision as of 19:32, 19 September 2015
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.19/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	//---- convert RGB image into different color formats		//---- convert RGB image into different color formats
	MultiSpectral<ImageFloat32> hsv = ~~new MultiSpectral<ImageFloat32>(ImageFloat32.class,~~rgb.~~width,rgb.height,3~~);		MultiSpectral<ImageFloat32> hsv = rgb.createSameShape();
	ColorHsv.rgbToHsv_F32(rgb, hsv);		ColorHsv.rgbToHsv_F32(rgb, hsv);

	MultiSpectral<ImageFloat32> yuv = ~~new MultiSpectral<ImageFloat32>(ImageFloat32.class,~~rgb.~~width,rgb.height,3~~);		MultiSpectral<ImageFloat32> yuv = rgb.createSameShape();
	ColorYuv.yuvToRgb_F32(rgb, yuv);		ColorYuv.yuvToRgb_F32(rgb, yuv);

Peter at 21:57, 26 December 2013

2013-12-26T21:57:11Z

← Older revision		Revision as of 21:57, 26 December 2013
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	Concepts:		Concepts:
	* Color space		* Color space

			Relevant Examples:
			* [[Example_Color_Segmentation\| Color Segmentation]]

	Relevant Applets:		Relevant Applets:

Peter: Updated for v0.16

2013-12-25T19:24:35Z

Updated for v0.16

← Older revision		Revision as of 19:24, 25 December 2013
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	Example Code:		Example Code:
	* [https://github.com/lessthanoptimal/BoofCV/blob/v0.14/examples/src/boofcv/examples/~~ExampleImageEnhancement~~.java ~~ExampleImageEnhancement~~.java]		* [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/examples/src/boofcv/examples/imageprocessing/ExampleColorSpace.java ExampleColorSpace.java]

	Concepts:		Concepts:
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	// Convert input image into a BoofCV RGB image		// Convert input image into a BoofCV RGB image
	MultiSpectral<ImageFloat32> rgb = ConvertBufferedImage.convertFromMulti(image, null, ImageFloat32.class);		MultiSpectral<ImageFloat32> rgb = ConvertBufferedImage.convertFromMulti(image, null,true, ImageFloat32.class);
	~~ConvertBufferedImage.orderBandsIntoRGB(rgb,image~~);

	//---- convert RGB image into different color formats		//---- convert RGB image into different color formats

Peter: Created page with "Example of how to convert between different color spaces in BoofCV. Either the whole image can be coverted or individual values. Example Code: * [https://github.com/lessthan..."

2013-04-15T13:02:26Z

Created page with "Example of how to convert between different color spaces in BoofCV. Either the whole image can be coverted or individual values. Example Code: * [https://github.com/lessthan..."

New page

Example of how to convert between different color spaces in BoofCV. Either the whole image can be coverted or individual values.

Example Code:
* [https://github.com/lessthanoptimal/BoofCV/blob/v0.14/examples/src/boofcv/examples/ExampleImageEnhancement.java ExampleImageEnhancement.java]

Concepts:
* Color space

Relevant Applets:
* [[Applet Color Space| Color Space]]

= Example Code =

<syntaxhighlight lang="java">
/**
* Simple demonstration for converting between color spaces in BoofCV. Currently RGB, YUV, HSV, and YCbCr are
* supported.
*
* @author Peter Abeles
*/
public class ExampleColorSpace {

public static void main( String args[] ) {
BufferedImage image = UtilImageIO.loadImage("../data/applet/sunflowers.jpg");

// Convert input image into a BoofCV RGB image
MultiSpectral<ImageFloat32> rgb = ConvertBufferedImage.convertFromMulti(image, null, ImageFloat32.class);
ConvertBufferedImage.orderBandsIntoRGB(rgb,image);

//---- convert RGB image into different color formats
MultiSpectral<ImageFloat32> hsv = new MultiSpectral<ImageFloat32>(ImageFloat32.class,rgb.width,rgb.height,3);
ColorHsv.rgbToHsv_F32(rgb, hsv);

MultiSpectral<ImageFloat32> yuv = new MultiSpectral<ImageFloat32>(ImageFloat32.class,rgb.width,rgb.height,3);
ColorYuv.yuvToRgb_F32(rgb, yuv);

//---- Convert individual pixels into different formats
float[] pixelHsv = new float[3];
ColorHsv.rgbToHsv(10,50.6f,120,pixelHsv);
System.out.printf("Found RGB->HSV = %5.2f %5.3f %5.1f\n",pixelHsv[0],pixelHsv[1],pixelHsv[2]);

float[] pixelRgb = new float[3];
ColorHsv.hsvToRgb(pixelHsv[0],pixelHsv[1],pixelHsv[2],pixelRgb);
System.out.printf("Found HSV->RGB = %5.1f %5.1f %5.1f expected 10 50.6 120\n",
pixelRgb[0],pixelRgb[1],pixelRgb[2]);

float[] pixelYuv = new float[3];
ColorYuv.rgbToYuv(10,50.6f,120,pixelYuv);
System.out.printf("Found RGB->YUV = %5.1f %5.1f %5.1f\n",pixelYuv[0],pixelYuv[1],pixelYuv[2]);

ColorYuv.yuvToRgb(pixelYuv[0],pixelYuv[1],pixelYuv[2],pixelRgb);
System.out.printf("Found YUV->RGB = %5.1f %5.1f %5.1f expected 10 50.6 120\n",
pixelRgb[0],pixelRgb[1],pixelRgb[2]);
}
}
</syntaxhighlight>