Which of the following Technique is Lossy Compression Technique ?Select one:Huffman CidingJPEGDPCMArithmetic Coding

1. Break Down the Problem

The question asks to identify which among the listed options is a lossy compression technique. The options provided are:

• Huffman Coding
• JPEG
• DPCM
• Arithmetic Coding

2. Relevant Concepts

1. Lossy Compression: This type of compression allows for a loss of information, meaning the original data cannot be perfectly reconstructed from the compressed data. It is commonly used for sound, images, and video.
2. Lossless Compression: Techniques where the original data can be perfectly reconstructed, such as Huffman Coding and Arithmetic Coding.

3. Analysis and Detail

• Huffman Coding: This is a lossless compression algorithm used for reducing the size of data without losing any information.
• JPEG: This is a widely used lossy compression method for digital images. It reduces file size significantly by discarding some image data.
• DPCM (Differential Pulse-Code Modulation): This can be used as a lossy or lossless method, but it is generally considered a lossy technique when approximating audio data.
• Arithmetic Coding: This is another form of lossless compression, which encodes data in a way that can perfectly reconstruct the original.

4. Verify and Summarize

Among the options:

• JPEG is definitely a lossy compression technique.
• DPCM can be lossy depending on how it is implemented.

Final Answer

JPEG is the lossy compression technique among the options provided.