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add expirmental support for http://equalais.media.mit.edu/
equalais modifies images to make them difficult for AI/ML to read
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| package edu.mit.media.equalais; | ||
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| import android.util.Base64; | ||
| import android.util.Log; | ||
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| import java.io.File; | ||
| import java.io.IOException; | ||
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| import okhttp3.MediaType; | ||
| import okhttp3.MultipartBody; | ||
| import okhttp3.OkHttpClient; | ||
| import okhttp3.Request; | ||
| import okhttp3.RequestBody; | ||
| import okhttp3.Response; | ||
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| public class Equalais { | ||
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| private final static String ENDPOINT = "https://equal-ais.appspot.com"; | ||
| private final static MediaType MEDIA_TYPE_JPG = MediaType.parse("image/jpg"); | ||
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| public byte[] perturb (byte[] faceJpeg) | ||
| { | ||
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| OkHttpClient client = new OkHttpClient(); | ||
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| RequestBody requestBody = new MultipartBody.Builder() | ||
| .setType(MultipartBody.FORM) | ||
| .addFormDataPart("image", "face.jpg", | ||
| RequestBody.create(MEDIA_TYPE_JPG, faceJpeg)) | ||
| .build(); | ||
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| // Create request for remote resource. | ||
| Request request = new Request.Builder() | ||
| .url(ENDPOINT) | ||
| .post(requestBody) | ||
| .build(); | ||
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| try { | ||
| Response response = client.newCall(request).execute(); | ||
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| if (response.isSuccessful()) { | ||
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| String eqFace = response.body().string(); | ||
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| byte[] resp = Base64.decode(eqFace,Base64.DEFAULT); | ||
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| return resp; | ||
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| } | ||
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| } | ||
| catch (IOException ioe) | ||
| { | ||
| Log.e(getClass().getName(),"error making post request",ioe); | ||
| } | ||
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| return null; | ||
| } | ||
| } |
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93 changes: 93 additions & 0 deletions
93
app/src/main/java/org/witness/obscuracam/photo/filters/EqualaisObscure.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package org.witness.obscuracam.photo.filters; | ||
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| import android.content.Context; | ||
| import android.graphics.Bitmap; | ||
| import android.graphics.BitmapFactory; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Paint; | ||
| import android.graphics.RectF; | ||
| import android.os.AsyncTask; | ||
| import android.util.Log; | ||
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| import java.io.ByteArrayOutputStream; | ||
| import java.util.Properties; | ||
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| import edu.mit.media.equalais.Equalais; | ||
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| public class EqualaisObscure implements RegionProcesser { | ||
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| Paint mPainter; | ||
| Context mContext; | ||
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| RectF mRect; | ||
| Bitmap mLastBmp; | ||
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| public EqualaisObscure (Context context, Paint painter) | ||
| { | ||
| mContext = context; | ||
| mPainter = painter; | ||
| } | ||
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| @Override | ||
| public void processRegion(final RectF rect, final Canvas canvas, final Bitmap originalBmp) { | ||
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| if (mRect != null && mRect.equals(rect)) | ||
| { | ||
| if (mLastBmp != null) | ||
| { | ||
| canvas.drawBitmap(mLastBmp, null, rect, mPainter); | ||
| return; | ||
| } | ||
| } | ||
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| mRect = rect; | ||
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| // The Very Basic | ||
| new AsyncTask<Void, Void, byte[]>() { | ||
| protected void onPreExecute() { | ||
| // Pre Code | ||
| } | ||
| protected byte[] doInBackground(Void... unused) { | ||
| // Background Code | ||
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); | ||
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| try { | ||
| Bitmap rectBitmap = Bitmap.createBitmap(originalBmp, (int) rect.left, (int) rect.top, (int) rect.width(), (int) rect.height()); | ||
| rectBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); | ||
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| Equalais equalais = new Equalais(); | ||
| return equalais.perturb(baos.toByteArray()); | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| Log.e("Equalais","Error perturbing!",e); | ||
| return null; | ||
| } | ||
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| } | ||
| protected void onPostExecute(byte[] resp) { | ||
| // Post Code | ||
| if (resp != null) | ||
| { | ||
| mLastBmp = BitmapFactory.decodeByteArray(resp, 0, resp.length); | ||
| canvas.drawBitmap(mLastBmp, null, rect, mPainter); | ||
| } | ||
| } | ||
| }.execute(); | ||
| } | ||
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| @Override | ||
| public Properties getProperties() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public Bitmap getBitmap() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public void setProperties(Properties props) { | ||
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| } | ||
| } |
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