Consider casting the result of getpoint/3 to the band format of the subject image?

[kipcole9]

Today, Vix.Vips.Operation.getpoint/3 always returns a float values. This means that casting the result to the band format of the subject image is up to the caller.

Typically this requires a call to Vix.Vips.Image.format/1 and therefore an additional NIF call.

I know getpoint/3 is generated from introspection but I wonder if there is some way to have a NIF function that gets the pixel data and casts the return data to the right format - thereby removing the overhead of the additional NIF call. At least converting floats to integers for the integer based formats. Given how common sRGB is, this would be a beneficial change.

[akash-akya]

Hey @kipcole9, yeah that makes sense, I'll add a function.
Thanks!

[akash-akya]

@kipcole9 I am thinking of adding a function under Vix.Vips.Image something like get_pixel(_image, _x, _y).
Wdty?

[kipcole9]

Perfect for me - that’s exactly the name and signature of what I put in ImageSent from my iPhoneOn 20 Jul 2024, at 17:04, Akash Hiremath ***@***.***> wrote: @kipcole9 I am thinking of adding a function under Vix.Vips.Image something like get_pixel(_image, _x, _y). Wdty? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>

[akash-akya]

Fixed in #157