Resize/Resample quality query

[#1]

Using IRFANVIEW, to resize some .jpg pics to increase the mpx count

On the resize box there is a Resample area with various methods listed.

As you can see, Lanczos ( slowest ) is selected.   I am assuming, as it is the slowest that it would give the best quality in the resample. 

Would that be a correct assumption, or is there a better quality option in the list showing ?

[#2]

With regard to the mpx count...  that has been solved !. but I would still like to know about the quality of those listed.

Thanks

[#3]

https://www.google.com/search?q=irfanview+resample+filters+hermite+vs+triangle+vs+bell+vs+mitchell+v...

[#4 · Accepted solution]

As a rule of thumb the quality does increase as you go down the list. The more nuanced answer is that it’s very much dependent on the picture/photo in use and depending on the contents you may actually get a “better” result from one of the other algorithms.

[#5]

@RPMozley  ok Thanks for that .... I have tried  different options, from time to tim..... but have never noticed any difference on my screen. ( 17inch laptop )  maybe it shows better on more sophisticated/powerful monitors.

I`ll leave it at the default.

Thanks