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Merge pull request #73 from debounce2/master

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add support for monochrome 2 colors
This commit is contained in:
Antoni Sawicki 2020-09-29 12:21:47 -07:00 committed by GitHub
commit 259f998787
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3 changed files with 8 additions and 0 deletions
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1
go.mod
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@ -3,6 +3,7 @@ module github.com/tenox7/wrp
go 1.14
require (
github.com/MaxHalford/halfgone v0.0.0-20171017091812-482157b86ccb
github.com/chromedp/cdproto v0.0.0-20200424080200-0de008e41fa0
github.com/chromedp/chromedp v0.5.3
github.com/ericpauley/go-quantize v0.0.0-20200331213906-ae555eb2afa4

2
go.sum
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@ -1,3 +1,5 @@
github.com/MaxHalford/halfgone v0.0.0-20171017091812-482157b86ccb h1:YQ+d0g0P0F/06oDoeEgDHeZCIrnKgLxXcqYOpe8sTuU=
github.com/MaxHalford/halfgone v0.0.0-20171017091812-482157b86ccb/go.mod h1:J86XzS1wgzJPjpQmpriJ+SetP17JSQUd9l+HWQK86jA=
github.com/chromedp/cdproto v0.0.0-20200116234248-4da64dd111ac/go.mod h1:PfAWWKJqjlGFYJEidUM6aVIWPr0EpobeyVWEEmplX7g=
github.com/chromedp/cdproto v0.0.0-20200424080200-0de008e41fa0 h1:Mf2aT0YmWsdNULwaHeCktDLWHb1s+VoDi9xEcFboLQ4=
github.com/chromedp/cdproto v0.0.0-20200424080200-0de008e41fa0/go.mod h1:PfAWWKJqjlGFYJEidUM6aVIWPr0EpobeyVWEEmplX7g=

5
wrp.go
View File

@ -27,6 +27,7 @@ import (
"syscall"
"time"
"github.com/MaxHalford/halfgone"
"github.com/chromedp/cdproto/css"
"github.com/chromedp/cdproto/emulation"
"github.com/chromedp/cdproto/page"
@ -357,6 +358,10 @@ func (w wrpReq) capture() {
fmt.Fprintf(w.out, "<BR>Unable to decode page screenshot:<BR>%s<BR>\n", err)
return
}
if w.colors == 2 {
gray := halfgone.ImageToGray(i)
i = halfgone.FloydSteinbergDitherer{}.Apply(gray)
}
var gifbuf bytes.Buffer
err = gif.Encode(&gifbuf, i, &gif.Options{NumColors: int(w.colors), Quantizer: quantize.MedianCutQuantizer{}})
if err != nil {