Brunton Multi-Navigator Especificações descarregar pdf (Página 113)

Standard Image Formats

BMP

- Not recommended but is the only format supported in the shareware/demo version. No

compression so image files are large. Image must be fully loaded into RAM.

The formats below can only be used in the registered version of OziExplorer.

TIF

- The TIF format has many different variations and compression schemes which can be used.

This format allows paging from disk so is efficient on memory usage.

LZW

compression - Gives good compression of maps and images.

Packbits

compression -

Gives good compression of raster maps with solid colors but does not

compress self scanned images very well.

This is the recommended standard image format to use if the larger file sizes when using packbits

compression is not of concern.

24bit Color TIFF files can be used and are paged from disk as the 8bit color TIFF images are.

(Please note that 24bit Planar TIFF images are fully loaded into RAM, for large images the amount

of RAM required can be a factor in whether the images can be used or not.)

PNG

- This format gives good compression but the image must be decompressed and fully loaded

into memory (it cannot be paged from disk). This is the preferred "non-

paging" format to use. (8bit

or 24bit color images are supported)

ECW

- Highly compressed format. This format allows paging from disk so is efficient on memory

usage. Images can also be loaded from ECW image servers

see Importing ECW help for details.

SID

- Highly compressed format. This format allows paging from disk so is efficient on memory

usage.

JPG

Provides excellent compression but it is slow to load and the fully uncompressed image must

be loaded into Memory (non

paging), not recommended for use with large images.

JP2

JP2000 is a format which gives good compression. If the JP2 file is supplied with a (.j2w)

file, OziExplorer can use it for geo

referencing.

Special Formats Used for Mapping

BSB

a proprietary format developed specifically for mapping, the use of professionally created

images gives good compression and the image can be paged from disk. This format cannot be

written by the user. This is a proprietary format which is licensed for use in OziExplorer.

Maptech PCX (.HDR,.A01,.A02....)

- An older format produced by Maptech but still in use. This is

a proprietory format which is licensed for use in OziExplorer.

Maptech Superdisk Format (.RML)

- Similar to the PCX format above but the images are

compressed. This is a proprietory format which is licensed for use in OziExplorer.

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