VPV

VisionX V4
NAME

vpv − pixel visualization for small byte images

SYNOPSIS

vpv [if=infile] [of=ofile] [s=] [-a] [-b] [-e] [-c] [bl=] [bh=] [-t] [-p] [-pb] [-nb] [ig=] [-or] [-v] [-d]

vpvt [if=infile] [of=ofile] [s=] [-a] [-b] [-e] [bl=] [bh=] [-z] [-t] [-p] [-pb] [-br] [ff=] [-v]

DESCRIPTION

vpv Creats a visualization of a small size byte image for makeing presentations and examples. Different border options and text options are available. The input file can be a byte image or a text file with one line for each image row. In binary modes (-b or -e) only two grey levels are used for pixels; one for zero and the other for all other values.

vpvt Creates a set of tiles one for each pixel. Tiles are reasemebled into a single image by vtile. Input files must be visionx byte images.

OPTIONS

if=<fname>

specifies the input DICOM image file name.

of=<fname>

This specifies the output file name

s=<size>

This specifies the size of pixel tile (default 30)

-a

Autoscale pixel shade

-t

Specify no text

-b

Binary image mode, for grey shades consider the image to be a be "binary" with 0 equivalent to false and all other pixel values true. (text still gives actual pixel value except for 0 which is left blank

-b

Inverted binary image mode

bl=

Low pixel value to use for -b or -e modes (default is 200)

bh=

High pixel value to use for -b or -e modes (default is 255)

-v

verbose option

VPV OPTIONS

-x

View the output using xvx instead of saving the image

-nb

specify no image border

-pb

specify white double thick image border (from vpvt) in addition to regular (black) border unless -nb is specified.

-p

Create the image in png format (default visionx format)

-c

No color for color image

-d

debug option

ig=

Specify a second image file, the ig= file is processed and anded with the if= (or stdin from a pipe). See also the -or option. When usong this option the scond image file must be in VisionX format and compatible with the ig= file visualization outcome.

-or

Use an OR function instead of AND from compbining two visualizations.

VPVT OPTIONS

ff=<font>

specify the bitmap font

-br

create border

-z

ignore grey values (set to zero)
AUTHOR

A. P. Reeves

SEE ALSO

vdraw(1)