IImage is a visual mage is a visual representation of representation of an object or scene an object or scene or person produced or person produced on a surface .on a surface .

Digital image Digital image processing refers processing refers to processing to processing digital image by digital image by means of a digital means of a digital computer.computer.

An image is digitized to convert it to a form which can be stored in a computer's memory or on some form of storage media such as a hard

disk or CD-ROM.

Once the image has been digitized, it can be operated upon by various image processing operations.

Once the image has been digitized, it can be operated upon by various image processing operations.

Image Processing :Operations

      Image Compression

      Image Enhancement and Restoration

      Measurement Extraction

Basic Enhancement & Restoration Techniques

Unsharp masking

Noise suppression

Distortion suppression

Basic equation:F(x,y)=f(x,y)-f’(x,y)Basic equation:F(x,y)=f(x,y)-f’(x,y)

FigureFigure

1.1. OriginalOriginal

2.2. MaskMask

3.3. resultresult

Noise SupressionNoise Supression

In the left picture there is some distortion In the left picture there is some distortion due to noise during digitization process due to noise during digitization process but the right picture is clear with the but the right picture is clear with the elimination of noise.elimination of noise.

Distortion SupressionDistortion Supression

There are various other There are various other methods to improve the quality methods to improve the quality of image such as edge detection, of image such as edge detection, histogram processing and histogram processing and various other filter techniques.various other filter techniques.

PhotographyPhotography and printing and printing Satellite image processing Satellite image processing Medical image processingMedical image processing Face detectionFace detection, feature detection, , feature detection,

face identification face identification Microscope image processing Microscope image processing Car barrier detection Car barrier detection

Audio stream contain extremely valuable data, Audio stream contain extremely valuable data, whose contents is also very rich and diverse. whose contents is also very rich and diverse. The combination of audio and image The combination of audio and image techniques, will definitely generate techniques, will definitely generate interesting results, and very likely improve interesting results, and very likely improve the quality of the present analysis the quality of the present analysis

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Till now we have seen various Till now we have seen various operations that can be applied on a operations that can be applied on a image to improve the quality of the image to improve the quality of the image. Hence we can say that in image. Hence we can say that in future various other upcoming future various other upcoming methods and technologies like methods and technologies like jetstream may be added inorder to jetstream may be added inorder to improve the image to great extent.improve the image to great extent.

QUERIESQUERIES

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