======================================================================
       the GIMP G-Pen + MixBrushpb`i2.4ڐAŁj
======================================================================

́AMixBrushc[G-Penc[the GIMP 2.4.0ɈڐA
AWindowspɃrĥłB
MixBrushc[ɂẮAŏɉĂ܂B


G-Pen + MixBrushpb`

CXg`ƂprɂẮA@\Iɕs\Ƃ邱Ƃthe 
GIMPgāAnbs[ɂȂ낤Ƃ悤ȃvWFNg̏ʕ
łB
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̏ڐAłł̃ACfÂ́A萮Eǂ̏gݍ܂
Ă悤łB

vWFNgz[y[W
http://sourceforge.jp/projects/gimp-painter/

WikiTCgiec[̐Ȃǁj
http://www24.atwiki.jp/sigetch_2007/pages/20.html


CXg[

ǂWindowsł2.4.0ĂăCXg[AA[JCu
gimp-2.4.exeւĂB
NȂȂǂ̃guł邾́A

http://www.geocities.jp/bitcase0312/index.html

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ŉƂłƂ͌HrhCXg[邱Ƃ߂
܂B

ȑO̔ł̏GIMPgĂāAVłɍւ㓮삪
ꍇ́Axc[IvVZbgGIMPċNƉ
P邱Ƃ܂B


ӏƐݒ̉

-Minimum scale
uVTCYMŃRg[ۂ́AiőM̃TCYɂ
jŏ{łB
Ⴆ΁A1.0w肷ƈ͊x̕MItɂ̂ƓƂɂȂ܂
A0w肷Ώ]ǂ̕ω̎d܂B0.5w肵ꍇɂ́A
łyMōőM50%TCYɂȂ܂B

-Bleed
Canvas̃J[́Aʏ풼O܂ł̕`_ł񂾌̒lƂ܂A
BleedグĂƁA`_łޑÕJ[悤ɂȂ܂B
uV̕sx߂ɂBleedƁAŜG̋Lo
Xō悤Ȋo₷Ǝv܂B
]Ɠ]ޏꍇ́ABleed0ɂĂB̏ꍇAsx
ႭȂȂƉñJ[ĂȂȂ܂B
ȑOPainteŕuɂ݁vɑp[^łƂĂ
܂A`FbNۂ̏Ƀ~X̂ŁAY̕폜
܂B

-Delay
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AXg[NJnÕf[^J[擾Ă܂ƁAg
̃Xg[Nɂ܂邱Ƃł܂i1018ł͂̎dlłjB
̂߁AXg[N̊JnAۂɕ`_łނ̂ꎞۗ邱Ƃ
K؂ȃJ[擾ł悤ɂĂ܂B
Delayp[^́Aۗ`_̐ŵłB傫Ȓl
w肷ƁAX^CX̓ɑ΂Ďۂ̕`悪ǂĂ悤ɂȂ
̂ő̈a邩܂BtɏȒlw肷ƈay
܂AO̕`_̃J[EĂ܂߁ABleeďʂ
ȂȂ܂B
x`Ă݂āABleeďʂݒl̊ɏ\łȂƊDelay
𑝂₷悤ɂĂ݂ĂB܂ABleed0ɂĂDelay0ō\
܂B

-Dryout
PainteŕuF̐Lсvɑp[^łiPʂ̓sNZjBXg
[N̒ɔႵOriginal̔䗦ĂAwlɒBƊS
Canvaŝ݂ƂȂ܂B0͗OƂāAS܂i]ƓjB
Bleed0̏ꍇACanvas̕ŏ̕`_̃J[葱̂ŁA\
Ȍʂ܂BuVsx\ɉ邩ABleedĂ
Ă݂ĂB

-Pressure
Canvas colorOriginal colorBleed̂ꂼɕM̓Kpx܂A
Ƀ}CiX̒lݒ肷ƁȂOɕM𔽓]Ă悤ɂ
܂B
Ⴆ΁ACanvas colorPressureɂ͐̒lABleedPressureɂ͕̒l
邱ƂŁAMyƂñJ[AƂ`Fœh
AƂ`邱Ƃł܂B́APainter[U[ɂƂ
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-Paint the tail of stroke (delay > 0)
Xg[N̏I[Delay̕`_悤Ɏw܂BDelay1ȏ
ɂĂꍇ̕`悪CɂȂ̓`FbNOƋCIɂ͉P܂B

-Sample size
J[É͈iaj̏sNZŎw肵܂B
GIMPɌXAPI֐ŕςĂ̂łA\d̂ł̃p
[^ŐĂ܂B
1w肳ĂƂ́A]ƓlɕςȂAPI֐ŃJ[\ʒu
̃sNZJ[E܂B

-Use merged color
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Ă܂BuVTCYx傫ȂĂƏdȂ̂ŒӁB
{ȂAPainteŕu̐FEvɂȂāA`Ώۂ̃C[
ʂ̃C[J[gpƂłAmsƎ蔲
̂ߌ݂̎dlɂȂĂ܂BȂ̓}V낤ƂƂŁB
ƁAƂāAC[̃LoXOɂsNZJ[EA
ĂAƂ̂܂B

-Assume that the hidden color is
C[̓ɃyCgƂA܂͔wiF܂Bnormal
̓IWiMixBrushƓŉBꂽJ[iVKC[͍ŏɂȂ
j܂B
̃IvVwhiteɂĂƁAPainterŃC[ɃyCĝƑ
̓ɂȂAZ[h̃C[ɃyCgƂɂ͂~łB

-Remove the background color
ŏIIɌvZꂽ`FA ܂͔Cӂ̃J[āij
܂B̃R[h́Acolortoalpha.ciuF𓧖xɁvvOCj
q؂܂B
MixBrush́Ad˓h̃`FbNĂȂƖ{̌ʂ܂
A̋@\LɂĂꍇ̓`FbNOAʂɂꂢȎd
オƂȂ܂BD݂ɉĐ؂ւĂB
J[̎w"Assume that..."̑IQƂ܂B̂ƂA
NormalWhiteƓłB


ȑO̔ł̏C_

-114

d˓h̃`FbNOۂɁAXg[N̏dȂ镔镔̃J
[dlPAȂ悤ɂ܂i܂኱sc
邩܂񂪁AނˁugvԂɂ͂ȂĂƎv܂jB
]͂̎dl̂߁Au͊xv́uFvuOf[V̐Fgv
LɂƏd˓h胂[h悤ɂȂĂ܂ifGIMP
dlXɂȂĂ܂jB

-1029

Canvas color̕M̓Kp@ɖ߂܂BAtɂĂ
܂̂ŒӂĂi1025łɂꍇA29ł͓̐
ƂȂ܂BccjB
ftHgl1022ňȑOƓɂȂ悤ɁA-0.8ݒ肵Ă܂B

O[XP[̉摜܂̓`lɃyCgہAsx𐳂
ĂȂ̂ŏC܂B

1025łł́ARemove the background colorO[XP[CfbN
XJ[ł삵Ă܂ARGB[hɓȂ̂œK؂Ȍ
͓܂łB1029łłRGB[ĥ݂ŏs悤ɏC
܂B̃[hŃ`FbNĂĂA̓XLbv܂B

-1025

Canvas color̕M̗҂eƈقȂ悤Ȃ̂ŁAύX
B܂ABleed̕M̗sR̂Œ܂B
܂mł͂܂̂ŁA΂炭lqĕKvȂďC܂B

uVIvVɁud˓hv̍ڂA܂ł͂܂łB
Iɂ͏ɃIɂȂĂ̂łA̔ł̓Itɂł悤ɕύX
܂B`Frŕω悤Ȑݒŕ`ƂƃyCgł
iGIMP{̂Ɍjꍇ̂ŁA̍ۂ͏d˓hIɖ߂
B
d˓hIvVMixBrushŗL̃IvVł͂Ȃ̂ŁAftHg
uItvɂȂĂ܂BݒŃc[IvV̐ݒۑ悤
X΋N̓xɃIɂKvȂȂ܂B

WindowsoCi2.4.0łɂ܂B

-1022

1021łł́ACanvas colorRateij0ɂȂĂDryout
Ă܂Ă̂ŁAC܂B܂AKv̂ȂAPI֐̌
яoƃ[N̂ŏC܂B

-1021ŁiWindowsoCî݁j

GIMP 2.4ł̓c[̃NXɂāA{IȃIvVڂ̕\eR
g[Ă悤łB̂߁AȑO̔łł́u͊xv́u傫v
`FbN{bNX\ȂȂĂ܂B1021łł͂̓_C
Ă܂B

Bleed̓삪ύXꂽ̂ɔA苭悤ɒl̏0.3
ňグ܂B
ABleed̒lƉñJ[荞ޗ͂Ȃ̂ŁAL
тȂł܂͂߂G̋̂悤ȊɂȂ܂̂ŒӂĂ
B܂ÂƂuV̕sxƒO̕`_̌`Ă܂s
RɊ邩܂B
ۂ̂ƂA]̏ł0.2܂łɂĂł傤B


CɂȂ_

MyƂȂǂɃO[ۂȂςȐFÂo邱Ƃ
B炭xƂ_ȉ̐؎̂ẲeƎv܂iPainter
łľۂ͂܂jBBleed̏ł͑΍{Ă̂łA
IWipłӏ͂̂܂܂ɂĂ̂ŁA\ɉP
Ă܂B

Sample size傫ĂƁÃyCgŗ]vȐF邱
܂B͕ςƂɓ𔒁iwiFjɒu鏈
Ă̂֌WĂłB
́AO̕ϏȂƂ߂ȂƂłˁi͈͂L
ꍇ͓KɊԈȂƏdȂ邵jB


܂AȊŁcc

܂
yam at yellowmagic.info
ivoC_̋KɂAT[ȏMłȂ̂ŁAԐM
ꍇ͑̃[AhXɂȂ܂j
