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# bmp: supports bitmap files

Name | Type | Description
hue | verb | generate color from color set
readbmp | verb | read bitmap file, returning RGB data
readbmphdr | verb | read header from bitmap file
viewbmp | verb | bitmap viewer using isipicture control
viewrgb | verb | view numeric matrix of RGB data
writebmp | verb | write bmp file from RGB data

hue

    generate color from color set
    x. is color set
    y. is values from 0 to 1, selecting color

readbmp

    read bitmap file, returning RGB data

    new version thanks to Andrew Nikitin (J Forum 5 Sep 2002)

readbmphdr

    read header from bitmap file
    returns:  bitsize, rows, columns

viewbmp

    bitmap viewer using isipicture control

    x. = [parentid [;parentname]]
    y. = filename(s)

    e.g.  viewbmp jsystempath 'system\examples\data\j.bmp'

viewrgb

    view numeric matrix of RGB data
                     (writes bitmap file, then views it)
    x. = [parent]
    y. = matrix

writebmp

    write bmp file from RGB data

    Form:  data writebmp filename [;minimum bitsize]

    picks appropriate bit size of 4 8 or 24, subject
    to optional minimum bit size.

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