Search found 3 matches

by schrodingerscat
2019-08-22T02:43:57-07:00
Forum: Digital Image Processing
Topic: Bicubic (Catrom) image downsampling without antialiasing?
Replies: 7
Views: 10610

Re: Bicubic (Catrom) image downsampling without antialiasing?

No problem, thanks for the help guys. At the very least I have learnt a bit here! :-)
by schrodingerscat
2019-08-21T03:40:25-07:00
Forum: Digital Image Processing
Topic: Bicubic (Catrom) image downsampling without antialiasing?
Replies: 7
Views: 10610

Re: Bicubic (Catrom) image downsampling without antialiasing?

Thanks for the replies folks. OK, I am confused now myself. So I have gone back over my tests to confirm them. I have taken the following 200 x 200 image: https://i.imgur.com/0sptwuh.gif In Matlab, I resize this to 120 x 160 with aliasing enabled (their default method): image = imread('rings_sm_orig...
by schrodingerscat
2019-08-20T09:26:47-07:00
Forum: Digital Image Processing
Topic: Bicubic (Catrom) image downsampling without antialiasing?
Replies: 7
Views: 10610

Bicubic (Catrom) image downsampling without antialiasing?

Hi, I was wondering, does anybody know how to perform bicubic (catrom) image downsampling without executing the antialiasing step beforehand? If I run the command convert image_file -resize 160x120 -interpolate Catrom -size 160x120 xc:black +swap -gravity center -depth 8 -composite destinFileName Th...