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Bring grayscale circuit from vimz

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Piotr Mikołajczyk
2024-09-26 17:12:44 +02:00
parent 72724432a9
commit 4bb2ea085e
4 changed files with 289 additions and 0 deletions
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153
circuit/utils/pixels.circom Normal file
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pragma circom 2.0.0;
include "../node_modules/circomlib/circuits/bitify.circom";
include "../node_modules/circomlib/circuits/mux1.circom";
include "../node_modules/circomlib/circuits/comparators.circom";
template Decompressor(){
signal input in;
signal output out[10][3];
component toBits = Num2Bits(240);
component toNum[10][3];
toBits.in <== in;
for (var i=0; i<10; i++) {
for (var j=0; j<3; j++) {
toNum[i][j] = Bits2Num(8);
toNum[i][j].in[0] <== toBits.out[i*24+j*8];
toNum[i][j].in[1] <== toBits.out[i*24+j*8+1];
toNum[i][j].in[2] <== toBits.out[i*24+j*8+2];
toNum[i][j].in[3] <== toBits.out[i*24+j*8+3];
toNum[i][j].in[4] <== toBits.out[i*24+j*8+4];
toNum[i][j].in[5] <== toBits.out[i*24+j*8+5];
toNum[i][j].in[6] <== toBits.out[i*24+j*8+6];
toNum[i][j].in[7] <== toBits.out[i*24+j*8+7];
out[i][j] <== toNum[i][j].out;
}
}
}
template DecompressorKernel(kernel_size){
signal input in;
signal output out[kernel_size][kernel_size];
component toBits = Num2Bits(kernel_size*kernel_size*9); // 8-bit value, 1-bit sign
component toNum[kernel_size][kernel_size];
component selector[kernel_size][kernel_size];
toBits.in <== in;
for (var i=0; i<kernel_size; i++) {
for (var j=0; j<kernel_size; j++) {
toNum[i][j] = Bits2Num(8);
toNum[i][j].in[0] <== toBits.out[i*kernel_size*9+j*9];
toNum[i][j].in[1] <== toBits.out[i*kernel_size*9+j*9+1];
toNum[i][j].in[2] <== toBits.out[i*kernel_size*9+j*9+2];
toNum[i][j].in[3] <== toBits.out[i*kernel_size*9+j*9+3];
toNum[i][j].in[4] <== toBits.out[i*kernel_size*9+j*9+4];
toNum[i][j].in[5] <== toBits.out[i*kernel_size*9+j*9+5];
toNum[i][j].in[6] <== toBits.out[i*kernel_size*9+j*9+6];
toNum[i][j].in[7] <== toBits.out[i*kernel_size*9+j*9+7];
var value = toNum[i][j].out; // value
var sign = toBits.out[i*kernel_size*9+j*9+8]; // sign
selector[i][j] = Mux1();
selector[i][j].c[0] <== value;
selector[i][j].c[1] <== 0 - value;
selector[i][j].s <== sign;
out[i][j] <== selector[i][j].out;
}
}
}
template DecompressorGrey(){
signal input in;
signal output out[10];
component toBits = Num2Bits(240);
component toNum[10];
toBits.in <== in;
for (var i=0; i<10; i++) {
var j=0;
toNum[i] = Bits2Num(8);
toNum[i].in[0] <== toBits.out[i*24];
toNum[i].in[1] <== toBits.out[i*24+1];
toNum[i].in[2] <== toBits.out[i*24+2];
toNum[i].in[3] <== toBits.out[i*24+3];
toNum[i].in[4] <== toBits.out[i*24+4];
toNum[i].in[5] <== toBits.out[i*24+5];
toNum[i].in[6] <== toBits.out[i*24+6];
toNum[i].in[7] <== toBits.out[i*24+7];
out[i] <== toNum[i].out;
}
}
template CompressorCrop(){
signal input in[10];
signal output out;
component toNum = Bits2Num(240);
component toBits[10];
for (var i=0; i<10; i++) {
toBits[i] = Num2Bits(24);
toBits[i].in <== in[i];
for (var j=0; j<24; j++) {
toNum.in[i*24+j] <== toBits[i].out[j];
}
}
out <== toNum.out;
}
template DecompressorCrop(){
signal input in;
signal output out[10];
component decomp = DecompressorGrey();
decomp.in <== in;
out <== decomp.out;
}
template CropInfoDecompressor(){
signal input in;
signal output row_index;
signal output x;
signal output y;
component toBits = Num2Bits(36);
component toNumX = Bits2Num(12);
component toNumY = Bits2Num(12);
component toNumIndex = Bits2Num(12);
toBits.in <== in;
for (var i=0; i<12; i++) {
toNumX.in[i] <== toBits.out[i];
toNumY.in[i] <== toBits.out[i+12];
toNumIndex.in[i] <== toBits.out[i+24];
}
x <== toNumX.out;
y <== toNumY.out;
row_index <== toNumIndex.out;
}
template Test () {
signal input sig1;
signal input sig2;
component decom = Decompressor();
decom.in <== sig1;
sig2 === decom.out[2][2];
}
// component main = Test();

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circuit/utils/row_hasher.circom Normal file
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pragma circom 2.0.0;
include "../node_modules/circomlib/circuits/poseidon.circom";
template Hasher(inputSize) {
signal input values[inputSize];
signal output hash;
component hasher = Poseidon(inputSize);
for (var i = 0; i < inputSize; i++) {
hasher.inputs[i] <== values[i];
}
hash <== hasher.out;
}
template RowHasher (width) {
signal input img[width];
signal output hash;
component hasher[width-1];
for(var i=0; i < width-1; i++) {
hasher[i] = Hasher(2);
hasher[i].values[0] <== i == 0 ? img[0] : hasher[i-1].hash;
hasher[i].values[1] <== img[i+1];
}
hash <== hasher[width-2].hash;
}