Creating a DICOM file with jpeg lossy 8-bits from scratch

scratch.php

<?php
/*
 * Script to create a DICOM file from scratch (adds a lossy 8-bit grayscale jpeg)
 * Use with CAUTION!!! Might not create a valid DICOM file!!
 * Some tags might be missing, and others might need valid values
 * Assumes jpeg file and nanodicom toolkit is in local relative path
 */

ini_set('display_errors', 'On');
error_reporting(E_ALL | E_STRICT);

require 'nanodicom.php';

// Pixeler tool has the method to add the jpeg image
$dicom = Nanodicom::factory('', 'pixeler', 'blob');

// Set some values here (Needs to be done by Group and Element
// Group, Element, New value

// MetaElementGroupLength (this one needs to be first!)
$dicom->value(0x0002, 0x0000, 0);
// Patient ID
$dicom->value(0x0010, 0x0020, 'ID12345');
// MediaStorageSOPClassUID. "Ultrasound Image Storage"
$dicom->value(0x0002, 0x0002, '1.2.840.10008.5.1.4.1.1.6.1');
// MediaStorageSOPInstanceUID. Using a dummy one
$dicom->value(0x0002, 0x0003, '1.2.3.4.5');
// Patient Name
$dicom->value(0x0010, 0x0010, 'Patient^Name');
// Study date
$dicom->value(0x0008, 0x0020, date('Ymd'));
// ImplementationClassUID. Using a dummy one
$dicom->value(0x0002, 0x0012, '1.2.3.4.5');
// Modality
$dicom->value(0x0008, 0x0060, 'SC');

// Add jpeg
// pass the location of a jpeg file, in this case is a grayscale image.
$dicom->add_lossy_jpeg8('test.jpg');

// Save the file
$dicom->write_file('test.dcm');