File Formats: DICOM Format (DIC)

DICOM Format (DIC)

Note:

This format is supported only in Document/Medical.

DICOM (DIC) files are commonly used in medical images. LEADTOOLS reads a broad range of DICOM formats, converting them to LEAD-supported bits-per-pixel as necessary. LEADTOOLS writes DICOM files in the LEAD-supported bits-per-pixel. DICOM files can contain many comment fields of varioius types. You can use the L_ReadFileComment function to read comments in an existing file. Before writing a file, you can use the L_SetComment function to create an array of comments to be saved in the file.

You can read DICOM files as follows:

$image\sqrblit.gif$ Grayscale files in the 1- to 16-bit range are loaded as they are in the original file.

$image\sqrblit.gif$ Palettized color files in the 1- to 16-bit range are converted to 8-bit palettized or 24-bit unpalettized. By default, they are converted to 24-bit only if the palette contains more than 256 colors.

$image\sqrblit.gif$ Unpalettized color files (RGB, ARGB, or CMYK) with 1 to 16 bits per plane are converted to 24-bit RGB.

$image\sqrblit.gif$ Read multipage DICOM files by setting the page number in LOADFILEOPTION.

You can write DICOM files as 8, 12, or 16-bit grayscale, 8-bit palettized color, or 24-bit RGB color (8 bits per plane).

The file constants associated with this file format are:

Constant	Read Support	Write Support	Description
FILE_DICOM_GRAY	1 to 16 BPP (Grayscale)	1 to 16 BPP (Grayscale)	[89] Grayscale DICOM uncompressed.
FILE_DICOM_COLOR	8, 24 BPP	8, 24 BPP	[90] Color DICOM uncompressed.
FILE_DICOM_RLE_GRAY	xxxx	xxxx	[125] Grayscale DICOM RLE compressed.
FILE_DICOM_RLE_COLOR	xxxx	xxxx	[126] Color DICOM RLE compressed.
FILE_DICOM_JPEG_GRAY	8, 16 BPP (Grayscale)	8, 16 BPP (Grayscale)	[127] Grayscale DICOM JPEG compressed.
FILE_DICOM_JPEG_COLOR	24 BPP	24 BPP	[128] Color DICOM JPEG compressed.
FILE_DICOM_J2K_GRAY	8, 16 BPP (Grayscale)	8, 16 BPP (Grayscale)	[293] Grayscale DICOM JPEG 2000 compressed.
FILE_DICOM_J2K_COLOR	24 BPP	24 BPP	[294] Color DICOM JPEG 2000 compressed.

Required DLL: LTDIC. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Related Formats: EXIF - Exif Formats, JPG - JPEG Compressed, JP2 - JPEG 2000 Compressed, TIFF - Tagged Image File Format.