LEADTOOLS JPEG2000 Medical Image Comparison

The following chart lists different image types and the resulting image data size after being compressed using the specified compression scheme.
Image Info	Raw Image Data	JPEG Lossless	J2K Lossless	Lossy JPEG - Best Quality	Lossy J2K - Best Quality	Lossy J2K- Ratio 30:1	JPEG Lossy Maximum	J2K Similar Quality as Max JPEG
24-bit Color 640x480 pixels	922,194 bytes	406,352 bytes	161,966 bytes	59,557 bytes	34,094 bytes	30,707 bytes	12,143 bytes	12,269 bytes
8-bit Grayscale 492x408 pixels	200,736 bytes	117,323 bytes	90,700 bytes	86,408 bytes	56,317 bytes	6,620 bytes	7,894 bytes	8,189 bytes
12-bit Grayscale 1760x2140 pixels	5,661,580 bytes	3,235,784 bytes	2,788,624 bytes	2,884,794 bytes	2,824,556 bytes	188,306 bytes	245,623 bytes	245,693 bytes
12-bit Grayscale 512x512 pixels	393,820 bytes	231,011 bytes	159,313 bytes	201,707 bytes	196,334 bytes	13,069 bytes	35,169 bytes	35,553 bytes
16-bit Grayscale 512x512 pixels	524,892 bytes	356,759 bytes	220,514 bytes	N/A	217,152 bytes	17,333 bytes	N/A	N/A
16-bit Grayscale 2048x2577 pixels	10,618,476 bytes	8,365,775 bytes	4,895,233 bytes	N/A	4,746,837 bytes	351,810 bytes	N/A	N/A
16-bit Grayscale 256x256 pixels	131,548 bytes	192,990 bytes	77,744 bytes	N/A	65,307 bytes	4,304 bytes	N/A	N/A

JPEG2000 employs a new type of lossless compression algorithm than the one used in traditional JPEG compression.

Whereas traditional JPEG compresses images with a scheme called discrete cosine transformation (DCT), JPEG2000 uses the newer wavelet based compression.

One of the drawbacks of the original jpeg compression is that it tends to cause visible artifacting with varying degrees of lossiness. Images suffer degradation to the point of loss of visibility at extremely high compression rates. Wavelet compression, on the other hand, uses mathematical expressions to encode the image in a continuous stream. Depending on the amount of compression the user applies, the result can be completely lossless (no artifacts) and yet produce extremely small files.

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Related Products

Pricing Structure
Product	Price	Purchase	Try
LEADTOOLS Medical Imaging SDK	†$4495		Free Trial
LEADTOOLS Medical Imaging Suite	†$7995		Free Trial

†Marked toolkits require runtime licensing based on the deployment of the application you develop. Several purchase options are available. For more information, please contact oemsales@leadtools.com or call a LEAD sales representative.

LEADTOOLS JPEG2000 Medical Image Comparison

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