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Re: Image transformations
From: |
Eli Zaretskii |
Subject: |
Re: Image transformations |
Date: |
Tue, 25 Jun 2019 07:34:10 +0300 |
User-agent: |
K-9 Mail for Android |
On June 25, 2019 6:28:32 AM GMT+03:00, Stefan Monnier <address@hidden> wrote:
>
> >> Also, one of the two matrices can't be computed if the
> transformation
> >> turns the 2D image into a line (or a point).
> > We don't support such transformations.
>
> There's no option to "magnify" by a factor 0?
Factor zero will give you zero pixels, which is not what you want.
But more generally: no, we don't currently support that. Did you try it?
> >> Compared to the cost of handling the image, inverting a 3x3 matrix
> >> is probably negligible, tho.
> > Maybe so, but it still sounds silly to me.
>
> Part of the reason for my question above is to figure out if the
> implementation of the API is likely to have such matrix inversion
> code internally
How can we possibly know for sure, on all supported platforms?
> (since it seems quite possible that sometimes one is
> preferable and sometimes the other).
I admit I don't see why we would have different preferences. We need to comply
to public interfaces, which means use what they require.
- Re: Image transformations, (continued)
- Re: Image transformations, Alan Third, 2019/06/15
- Re: Image transformations, Eli Zaretskii, 2019/06/15
- Re: Image transformations, Alan Third, 2019/06/16
- Re: Image transformations, Eli Zaretskii, 2019/06/16
- Re: Image transformations, Alan Third, 2019/06/17
- Re: Image transformations, Eli Zaretskii, 2019/06/19
- Re: Image transformations, Eli Zaretskii, 2019/06/24
- Re: Image transformations, Stefan Monnier, 2019/06/24
- Re: Image transformations, Eli Zaretskii, 2019/06/24
- Re: Image transformations, Stefan Monnier, 2019/06/24
- Re: Image transformations,
Eli Zaretskii <=
- Re: Image transformations, Stefan Monnier, 2019/06/25
- Re: Image transformations, Eli Zaretskii, 2019/06/25
- Re: Image transformations, YAMAMOTO Mitsuharu, 2019/06/25
- Re: Image transformations, Eli Zaretskii, 2019/06/26
- Re: Image transformations, YAMAMOTO Mitsuharu, 2019/06/26
- Re: Image transformations, Eli Zaretskii, 2019/06/27
- Re: Image transformations, Alan Third, 2019/06/25
- Re: Image transformations, Eli Zaretskii, 2019/06/25
- Re: Image transformations, Eli Zaretskii, 2019/06/27
- Re: Image transformations, Alan Third, 2019/06/28