image/gif: encoder does not honor image bounds. · golang/go#6635

2013-10-21T14:53:50.000Z

by **dan.pupius**: 1. Open a image using gif.DecodeAll 2. Replace frame(s) with a `SubImage`, e.g. to make a square crop 3. Save image using gif.EncodeAll What is the expected output? Saved image should correctly show cropped region What do you see instead? Resultant image is incorrectly offset, see lucha.out.gif vs lucha.out.jpg Which operating system are you using? OSX Which version are you using? (run 'go version') $ go version go version devel +560ca6cc94b5 Sun Oct 20 18:29:15 2013 -0700 darwin/amd64 Please provide any additional information below. I think the sImageDescriptor block in gif/writer.go needs to have the X/Y values adjusted by the Min bounds of the first frame. Attachments: 1. gifs.go (966 bytes) 2. lucha.gif (7598 bytes) 3. lucha.out.jpg (17750 bytes) 4. lucha.out.gif (6843 bytes)

(8 commenti) (0 reazioni) (0 assegnatari)Go (19.008 fork)batch import

help wanted

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by dan.pupius:

Attachments:

gifs.go (966 bytes)
lucha.gif (7598 bytes)
lucha.out.jpg (17750 bytes)
lucha.out.gif (6843 bytes)

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Direzione di ricerca: Ispeziona il file gif/writer.go e regola le coordinate X/Y nel blocco descrittore dell'immagine in base ai limiti del primo fotogramma.
Tech stack: go
Dominio: backend
Tipo issue: Bug
Difficoltà: 2
Tempo stimato: 1-3 ore
Stato attività: Attiva
Chiarezza: Chiara
Prerequisiti: Go
Adatta ai principianti: 75

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