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kandi has reviewed 3DDFA_V2 and discovered the below as its top functions. This is intended to give you an instant insight into 3DDFA_V2 implemented functionality, and help decide if they suit your requirements.
The official PyTorch implementation of Towards Fast, Accurate and Stable 3D Dense Face Alignment, ECCV 2020.
Usage
git clone https://github.com/cleardusk/3DDFA_V2.git
cd 3DDFA_V2
Citation
@inproceedings{guo2020towards,
title = {Towards Fast, Accurate and Stable 3D Dense Face Alignment},
author = {Guo, Jianzhu and Zhu, Xiangyu and Yang, Yang and Yang, Fan and Lei, Zhen and Li, Stan Z},
booktitle = {Proceedings of the European Conference on Computer Vision (ECCV)},
year = {2020}
}
@misc{3ddfa_cleardusk,
author = {Guo, Jianzhu and Zhu, Xiangyu and Lei, Zhen},
title = {3DDFA},
howpublished = {\url{https://github.com/cleardusk/3DDFA}},
year = {2018}
}
QUESTION
Image similarity in swift
Asked 2022-Mar-25 at 11:42The swift vision similarity feature is able to assign a number to the variance between 2 images. Where 0 variance between the images, means the images are the same. As the number increases this that there is more and more variance between the images.
What I am trying to do is turn this into a percentage of similarity. So one image is for example 80% similar to the other image. Any ideas how I could arrange the logic to accomplish this:
import UIKit
import Vision
func featureprintObservationForImage(atURL url: URL) -> VNFeaturePrintObservation? {
let requestHandler = VNImageRequestHandler(url: url, options: [:])
let request = VNGenerateImageFeaturePrintRequest()
do {
try requestHandler.perform([request])
return request.results?.first as? VNFeaturePrintObservation
} catch {
print("Vision error: \(error)")
return nil
}
}
let apple1 = featureprintObservationForImage(atURL: Bundle.main.url(forResource:"apple1", withExtension: "jpg")!)
let apple2 = featureprintObservationForImage(atURL: Bundle.main.url(forResource:"apple2", withExtension: "jpg")!)
let pear = featureprintObservationForImage(atURL: Bundle.main.url(forResource:"pear", withExtension: "jpg")!)
var distance = Float(0)
try apple1!.computeDistance(&distance, to: apple2!)
var distance2 = Float(0)
try apple1!.computeDistance(&distance2, to: pear!)
ANSWER
Answered 2022-Mar-25 at 10:26It depends on how you want to scale it. If you just want the percentage you could just use Float.greatestFiniteMagnitude as the maximum value.
1-(distance/Float.greatestFiniteMagnitude)*100
A better solution would probably be to set a lower ceiling and everything above that ceiling would just be 0% similarity.
1-(min(distance, 10)/10)*100
Here the artificial ceiling would be 10, but it can be any arbitrary number.
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