News: 11 March 2016 - Forum Rules
Current Moderators - DarkSol, KingMike, MathOnNapkins, Azkadellia, Danke

Author Topic: Reduce data size of a graphic?  (Read 1690 times)

NERV Agent

  • Restricted Access
  • Sr. Member
  • *
  • Posts: 497
  • Eva Unit 01
    • View Profile
    • Watch my anime shitposts on YouTube! Smell them, too!
Reduce data size of a graphic?
« on: June 05, 2016, 08:01:23 pm »
Let's say I want to insert images into a PSX ISO, but the images have data sizes that are too large (they have the same resolution, though). I can go through the process of rewriting the TOC and rebuilding the ISO, but I'd rather not.

Is there a way to lower the data size of an image while still having it look like what it is supposed to be?

One possible idea I crapped out is to intentionally degrade the quality of the image so it doesn't look as good as it used to be, but still kinda resembles what it is supposed to look like with a smaller data size.

How does one go about dealing with such a dilemma?

FCandChill

  • Hero Member
  • *****
  • Posts: 540
    • View Profile
###
« Reply #1 on: June 05, 2016, 10:05:47 pm »
 Comment removed because reasons...
« Last Edit: August 05, 2016, 03:38:25 pm by FCandChill »

NERV Agent

  • Restricted Access
  • Sr. Member
  • *
  • Posts: 497
  • Eva Unit 01
    • View Profile
    • Watch my anime shitposts on YouTube! Smell them, too!
Re: Reduce data size of a graphic?
« Reply #2 on: June 05, 2016, 11:28:08 pm »
Uhhh, okay? Thanks for explaining it to me! No seriously! Your vague post really facilitates my question! Your demeanor is real constructive towards a beginner!*

I bet FCandChill probably meant image compression. What is the best way to go about doing this? A constructive answer (that isn't cryptic in an attempt to appear "enlightening") would be appreciated!









*Sarcasm
« Last Edit: June 05, 2016, 11:46:19 pm by NERV Agent »

FCandChill

  • Hero Member
  • *****
  • Posts: 540
    • View Profile
###
« Reply #3 on: June 06, 2016, 12:02:12 am »
 Comment removed because reasons...
« Last Edit: August 05, 2016, 03:38:13 pm by FCandChill »

NERV Agent

  • Restricted Access
  • Sr. Member
  • *
  • Posts: 497
  • Eva Unit 01
    • View Profile
    • Watch my anime shitposts on YouTube! Smell them, too!
Re: Reduce data size of a graphic?
« Reply #4 on: June 06, 2016, 12:07:05 am »
It seems that a lot of the tools in that article are web based. Is there a standalone executable that I can download and run, independent of an online connection?

Thanks for the info.

FCandChill

  • Hero Member
  • *****
  • Posts: 540
    • View Profile
###
« Reply #5 on: June 06, 2016, 12:10:45 am »
 Comment removed because reasons...
« Last Edit: August 05, 2016, 03:37:58 pm by FCandChill »

PhOeNiX

  • Jr. Member
  • **
  • Posts: 85
    • View Profile
Re: Reduce data size of a graphic?
« Reply #6 on: June 06, 2016, 02:41:42 am »
If your image has the same resolution, there is no way your new image will get bigger, unless the game uses some kind of lossless compression like LZSS. In that case the real problem is to write an optimized compressor and not reduce image quality.

henke37

  • Hero Member
  • *****
  • Posts: 643
    • View Profile
Re: Reduce data size of a graphic?
« Reply #7 on: June 06, 2016, 05:25:23 am »
Actually, even lossy compressions can produce different file sizes for the same input size. What you are thinking of is a fixed rate compression, such as seen in texture compression.