Output Size When Processing

Software Siril
1

Siril 1.4.3

Camera: ASI2600MC

Workflow:

seqextract_haoiii pp_light -resample=ha

Both:

Ha_pp_light
OIII_pp_light

are 6248×4176.

Then:

register Ha_pp_light -drizzle -scale=2.0 -pixfrac=.5 -kernel=square
register OIII_pp_light -drizzle -scale=2.0 -pixfrac=.5 -kernel=square

produces:

r_Ha_pp_light   6248×4176
r_OIII_pp_light 12496×8352

Is this expected, or should both registered sequences have the same dimensions?

2

Additional observations that should have been included in my first post:

Ha_pp_light_00001.fit
    6248 × 4176

OIII_pp_light_00001.fit
    6248 × 4176

r_Ha_pp_light_00001.fit
    6248 × 4176

r_OIII_pp_light_00001.fit
    12496 × 8352

The two input sequences to register have identical dimensions, but register -drizzle -scale=2.0 produces different-sized outputs.

3

Just a feeble reply because I do not know what program you used, but it looks like you scaled it up [scale=2.0]