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itkPNGImageIOJSBindingTest.js
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itkPNGImageIOJSBindingTest.js
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/*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License")
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
const assert = require('assert')
if (process.argv.length < 4) {
console.error('Usage: ', process.argv[0], process.argv[1], ' moduleDir inputImage outputImage')
process.exit(1)
}
var moduleDir = process.argv[2]
var inputImage = process.argv[3]
var outputImage = process.argv[4]
console.log('Input image: ', inputImage)
console.log('Output image: ', outputImage)
var path = require('path')
var modulePath = path.join(moduleDir, 'itkPNGImageIOJSBinding.js')
var Module = require(modulePath)
var imageio = new Module.ITKImageIO()
console.log('Reading image...')
Module.mountContainingDirectory(inputImage)
imageio.SetFileName(inputImage)
assert.strictEqual(imageio.GetFileName(), inputImage)
console.log(imageio.GetFileName())
assert(imageio.CanReadFile(inputImage), 'Could not read the file')
imageio.ReadImageInformation()
var dimension = 2
assert.strictEqual(imageio.GetNumberOfDimensions(), dimension)
assert.strictEqual(imageio.GetDimensions(0), 256)
assert.strictEqual(imageio.GetDimensions(1), 256)
assert.strictEqual(imageio.GetOrigin(0), 0.0)
assert.strictEqual(imageio.GetOrigin(1), 0.0)
assert.strictEqual(imageio.GetSpacing(0), 1.0)
assert.strictEqual(imageio.GetSpacing(1), 1.0)
var axisDirection = new Module.AxisDirectionType()
axisDirection.resize(dimension, 0.2)
axisDirection.set(0, 0.707)
imageio.SetDirection(0, axisDirection)
var retrievedAxisDirection = imageio.GetDirection(0)
assert.strictEqual(retrievedAxisDirection.get(0), 0.707)
assert.strictEqual(retrievedAxisDirection.get(1), 0.2)
var pixelType = imageio.GetPixelType()
assert.strictEqual(pixelType, Module.IOPixelType.RGB)
imageio.SetPixelType(pixelType)
var componentType = imageio.GetComponentType()
assert.strictEqual(componentType, Module.IOComponentType.UCHAR)
imageio.SetComponentType(componentType)
console.log('\nPixels: ' + imageio.GetImageSizeInPixels())
assert.strictEqual(imageio.GetImageSizeInPixels(), 65536)
console.log('Bytes: ' + imageio.GetImageSizeInBytes())
assert.strictEqual(imageio.GetImageSizeInBytes(), 196608)
console.log('Component size: ' + imageio.GetImageSizeInComponents())
assert.strictEqual(imageio.GetImageSizeInComponents(), 196608)
console.log('Components: ' + imageio.GetNumberOfComponents())
assert.strictEqual(imageio.GetNumberOfComponents(), 3)
var pixelBuffer = imageio.Read()
assert.strictEqual(pixelBuffer.length, 196608)
Module.unmountContainingDirectory(inputImage)