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in the above fig. i have selected the channel. so what we are seeing in the page that i need to retrieve the pixel data of that channel mask.. so that i can store that details in json. after that we have one tool in that we need to display the channel mask exactly how it looks in the photoshop. so if i get the code to retrieve the pixel data of channel mask image, so that i can display the channel mask in our tool for every channel mask
This description seems about meaningful but I don’t understand what this is about really?
that we have one tool in that we need to display the channel mask exactly how it looks in the photoshop.
Why employ another tool and not visualize the result in Photoshop itself?
Can that tool not simply process image data like tif, png, …?
In what exact form do you need the pixel data (not »pixel value« as you originally said)? Please post a sample.
pixel data, like. channel mask and layer mask is a pixel image . so each channel mask have pixel values like
R 255 G 255 B 170 so like this. from this pixel value channel mask will be created.
the above image shows pixel values.. so through the script how to get that details of each channel mask and layer mask
so in the above fig. i will selected path 1 from channels panel as u can see . so now i want to get that pixel data .
so i need pixel data in the form like , by using that data i should plot image from that data.. please find me which form of data that i need in this scenario?
or can we pull the rgb color data of each channel mask?
This would create a csv-file like this
from a grayscale image.
So you could duplicate all the channels into new files and save those temporarily (and delete them afterwards) to get the text files.
// getGrayscalePixelsValueViaRawBasedOnCodeByByPaul
// based on code by by paul riggott;
// 2023, use it at your own risk;
File.prototype.readByte = function() {
return this.read(1).charCodeAt(0);
};
function convertByteToSignedByte(num){
var dec = (num | (num % 256))-128
return dec;
};
function convertByteToLum( num){
var dec = Math.round((num/256)*100);
return dec;
};
function main(){
if(!documents.length) return;
if(activeDocument.mode != DocumentMode.GRAYSCALE) {
("Please convert this document to grayscale mode\r Then re-run this script");
return;
}
var Name = decodeURI(app.activeDocument.name).replace(/\.[^\.]+$/, '');
try{
var Path = activeDocument.path;
}catch(e){var Path = '~/Desktop';}
var rawFile = new File(Path +"/"+Name +".raw");
saveGrayscaleRaw(rawFile);
var csvFile = new File(Path +"/"+Name +".csv");
var len = 0;
var W = activeDocument.width.as('px');
CountW=0;
CountH=0;
rawFile.encoding = 'BINARY';
rawFile.open('r');
csvFile.open('w');
csvFile.writeln('X,Y,grayscale');
while(!rawFile.eof){
csvFile.write(CountW+',');
csvFile.write(CountH+',');
csvFile.writeln(rawFile.readByte());
len++;
if(len % W == 0){
CountH++;
CountW=0;
}else{
CountW++;
}
}
rawFile.close();
csvFile.close();
rawFile.remove();
}
main();
////// save raw from a grayscale image //////
function saveGrayscaleRaw (thePath) {
var desc4 = new ActionDescriptor();
var desc5 = new ActionDescriptor();
desc5.putString( stringIDToTypeID( "fileCreator" ), "8BIM" );
var idrawFormat = stringIDToTypeID( "rawFormat" );
desc4.putObject( stringIDToTypeID( "as" ), idrawFormat, desc5 );
desc4.putPath( stringIDToTypeID( "in" ), new File( thePath ) );
//desc4.putInteger( stringIDToTypeID( "documentID" ), 63 );*/
desc4.putBoolean( stringIDToTypeID( "copy" ), true );
desc4.putBoolean( stringIDToTypeID( "lowerCase" ), true );
desc4.putEnumerated( stringIDToTypeID( "saveStage" ), stringIDToTypeID( "saveStageType" ), stringIDToTypeID( "saveBegin" ) );
executeAction( stringIDToTypeID( "save" ), desc4, DialogModes.NO );
};
function saveAsRaw(file) {
var desc1 = new ActionDescriptor();
var desc2 = new ActionDescriptor();
desc2.putString( charIDToTypeID('FlCr'), "8BIM" );
desc2.putBoolean( charIDToTypeID('ChnI'), true );
desc1.putObject( charIDToTypeID('As '), charIDToTypeID('Rw '), desc2 );
desc1.putPath( charIDToTypeID('In '), new File( file ) );
desc1.putBoolean( charIDToTypeID('Cpy '), true );
executeAction( charIDToTypeID('save'), desc1, DialogModes.NO );
};
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