resdet
Learning and science
image forensics
SHOW HN2016
113points
15comments
#318of 2,264 in 2016
Top 15%of 2016 by points
How HN took it
CuriousMostly questions and neutral comments
2 positive, 5 neutral or asking, 0 mixed, 0 critical, out of 7 comments about the project. Thread score +0.20.
Idea: 2 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Fantastic, fun project with a useful idea for finding original image sizes.
From 2 comments
This is fantastic, and I was just wondering if something like existed a week ago. Sometimes I need to find the original picture of a thumbnail on the internet, so I use Google…
vortico on HN"Specifically, this project was born out of a yet-unpublished image deduplication framework, while attempting to identify whether duplicates were scaled versions of one another."…
daturkel on HN
Objections
Heavily compressed JPEGs produce misleading multiple resolution detections.
From 1 comment
That's exactly how it works. The example doesn't show more than one, but it will return multiple resolutions ranked with a confidence percent (the meaning of which depends on the…
0x09 on HN
Requests
Analyze regions with a sliding window to detect composited upscaled parts.
From 2 comments
Could you do this over a sliding window and calculate a score for regions? That would let you see if something has been composited from up scaled images.
joshu on HNSure. But I meant for each region, show the underlying resolution of that area. So like for FFT of a whole sample vs FFT of short periods to make a spectrogram.
joshu on HN
Support for audio files.
From 2 comments
Does anyone know of something similar for automatic analysis of audio using the FFT? There are visual ways to do it, but it would be nice to have an automated script
sigmar on HNAny idea if there is a similar app for sound files?
vinilios on HN
Questions
Is there a similar tool for sound files?
From 2 comments
Any idea if there is a similar app for sound files?
vinilios on HNDoes anyone know of something similar for automatic analysis of audio using the FFT? There are visual ways to do it, but it would be nice to have an automated script
sigmar on HN
Alternatives named
Google reverse image search
From 2 comments
This is fantastic, and I was just wondering if something like existed a week ago. Sometimes I need to find the original picture of a thumbnail on the internet, so I use Google…
vortico on HNInteresting, is that how google rev img search works? I was trying to find a usecase for this tech. I thought google maybe hashed files and searched thatway, but thumbnails dont…
vonklaus on HN