How to change my photo background on photoshop ?

my photo 's background is my living room or whatever, i want to change its to Black or white color background, what can i do by using photoshop soffware? thanksHow to change my photo background on photoshop ?
photoshop cs2, cs3 -





Extract an object from its background





For simpler cases, try using the Background Eraser tool.

When you extract the object, Photoshop erases its background to transparency.





Selected area highlighted and filled, and extracted object





You can add back opacity to the background and create other effects using the Edit %26gt; Fade command after an extraction.

In the Layers palette, select the layer containing the object you want to extract. If you select a background layer, it becomes a normal layer after the extraction. If the layer contains a selection, the extraction erases the background only in the selected area.

To avoid losing the original image information, duplicate the layer or make a snapshot of the original image state.

Choose Filter %26gt; Extract, and then specify tool options:

Brush Size Enter a value, or drag the slider to specify the width of the Edge Highlighter tool . You also use the Brush Size option to specify the width of the Eraser, Cleanup, and Edge Touchup tools.





If you檝e selected Force Foreground, select the Eyedropper tool , and click inside the object to sample the foreground color, or click in the Color text box and use a color picker to select the foreground color. This technique works best with objects that contain tones of a single color.



Display Choose a menu option to preview the extracted object against a colored matte background or a grayscale background. To display a transparent background, choose None.



(Optional) Improve the extraction by doing one of the following:

Choose new Highlight and Fill options and draw again with the Edge Highlighter tool. Define the foreground area once more, and then preview the extracted object.



Specify new Extraction settings (Smooth, Force Foreground, or Color) and then preview the extracted object.



When you are satisfied with the extraction, you can do the final touchups.



Touch up the extraction results by doing one of the following:

To erase background traces in the extracted area, use the Cleanup tool . The tool subtracts opacity and has a cumulative effect. You can also use the Cleanup tool to fill gaps in the extracted object. Hold down Alt (Windows) or Option (Mac OS) while dragging to add back opacity.



To edit the edge of the extracted object, use the Edge Touchup tool . The tool sharpens edges and has a cumulative effect. If there is no clear edge, the Edge Touchup tool adds opacity to the object or subtracts opacity from the background.



You can also clean up the image after an extraction by using the Background Eraser and History Brush tools in the toolbox.

Click OK to apply the final extraction. On the layer, all pixels outside the extracted object are erased to transparency.

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