dnutiu/ImageTagger
dnutiu/ImageTagger
1
1
Fork 0
Code Issues Pull requests Projects Releases 2 Packages Wiki Activity Actions

[Feature] [ALL] Implement image metadata extraction

Browse source
This commit is contained in:
Denis-Cosmin Nutiu 2024-05-24 22:07:13 +03:00
parent f17b8ff262
commit 3ecdf21296
1 changed files with 80 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

84
img-core/src/main/kotlin/dev/nuculabs/imagetagger/core/ImageMetadata.kt
View file

@ -3,15 +3,20 @@ package dev.nuculabs.imagetagger.core
import com.drew.imaging.ImageMetadataReader
import com.drew.metadata.Metadata
import com.drew.metadata.exif.ExifIFD0Directory
import com.drew.metadata.exif.ExifSubIFDDirectory
import java.io.File
// TODO: Lens Model, Camera Brand, Camera Model, ISO, Aperture, Shutter Speed
/**
* Interface that holds common image metadata objects used by this application.
*/
interface IImageMetadata {
val artist: String
val aperture: String
val shutterSpeed: String
val iso: String
val lensModel: String
val cameraModel: String
val cameraBrand: String
}
/**
@ -19,17 +24,88 @@ interface IImageMetadata {
*/
class ImageMetadata internal constructor(file: File) : IImageMetadata {
private var metadata: Metadata? = null
private lateinit var _cameraBrand: String
private lateinit var _cameraModel: String
private lateinit var _lensModel: String
private lateinit var _artist: String
private lateinit var _aperture: String
private lateinit var _iso: String
private lateinit var _shutterSpeed: String
init {
metadata = ImageMetadataReader.readMetadata(file)
if (metadata != null) {
val exifDirectory = metadata?.getFirstDirectoryOfType(ExifIFD0Directory::class.java)
val exifSubDirectory = metadata?.getFirstDirectoryOfType(ExifSubIFDDirectory::class.java)
_cameraBrand = exifDirectory?.getString(ExifIFD0Directory.TAG_MAKE) ?: "Unknown"
_cameraModel = exifDirectory?.getString(ExifIFD0Directory.TAG_MODEL) ?: "Unknown"
_lensModel = exifSubDirectory?.getString(ExifIFD0Directory.TAG_LENS_MODEL) ?: "Unknown"
_artist = exifDirectory?.getString(ExifIFD0Directory.TAG_ARTIST) ?: "Unknown"
_aperture = exifSubDirectory?.getString(ExifIFD0Directory.TAG_FNUMBER) ?: "Unknown"
_iso = exifSubDirectory?.getString(ExifIFD0Directory.TAG_ISO_EQUIVALENT) ?: "Unknown"
_shutterSpeed = exifSubDirectory?.getString(ExifIFD0Directory.TAG_EXPOSURE_TIME) ?: "Unknown"
}
}
override val cameraBrand: String
get() {
if (metadata == null) {
return "Unknown"
}
return _cameraBrand
}
override val cameraModel: String
get() {
if (metadata == null) {
return "Unknown"
}
return _cameraModel
}
override val lensModel: String
get() {
if (metadata == null) {
return "Unknown"
}
return _lensModel
}
override val artist: String
get() {
if (metadata == null) {
return "Unknown"
}
val exifDirectory = metadata?.getFirstDirectoryOfType(ExifIFD0Directory::class.java)
return exifDirectory?.getString(ExifIFD0Directory.TAG_ARTIST) ?: "Unknown"
return _artist
}
override val aperture: String
get() {
if (metadata == null) {
return "Unknown"
}
return _aperture
}
override val iso: String
get() {
if (metadata == null) {
return "Unknown"
}
return _iso
}
override val shutterSpeed: String
get() {
if (metadata == null) {
return "Unknown"
}
return _shutterSpeed
}
override fun toString(): String {
return "ImageMetadata(cameraBrand='$cameraBrand', cameraModel='$cameraModel', lensModel='$lensModel', artist='$artist', aperture='$aperture', iso='$iso', shutterSpeed='$shutterSpeed')"
}
}