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https://github.com/T8RIN/ImageToolbox.git
synced 2025-12-28 13:22:30 +00:00
Added VHS filter
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T8RIN
parent
c3bade04fd
commit
aeabcb69ce
@ -363,6 +363,7 @@ interface Filter<Value : Any> : VisibilityOwner {
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interface RadialWeavePixelation : FloatFilter
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interface BorderFrame : FloatColorModelFilter
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interface GlitchVariant : TripleFloatFilter
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interface VHS : PairFloatFilter
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}
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interface SimpleFilter : Filter<Unit>
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@ -371,7 +371,8 @@ sealed class UiFilter<T : Any>(
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UiCropOrPerspectiveFilter(),
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UiLensCorrectionFilter(),
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UiSeamCarvingFilter(),
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UiGlitchVariantFilter()
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UiGlitchVariantFilter(),
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UiVHSFilter()
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),
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//Dithering
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listOf(
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@ -0,0 +1,42 @@
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/*
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* ImageToolbox is an image editor for android
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* Copyright (c) 2025 T8RIN (Malik Mukhametzyanov)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* You should have received a copy of the Apache License
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* along with this program. If not, see <http://www.apache.org/licenses/LICENSE-2.0>.
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*/
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package com.t8rin.imagetoolbox.core.filters.presentation.model
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import com.t8rin.imagetoolbox.core.filters.domain.model.Filter
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import com.t8rin.imagetoolbox.core.filters.domain.model.FilterParam
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import com.t8rin.imagetoolbox.core.resources.R
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import kotlin.math.PI
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class UiVHSFilter(
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override val value: Pair<Float, Float> = 2f to 3f,
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) : UiFilter<Pair<Float, Float>>(
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title = R.string.vhs,
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value = value,
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paramsInfo = listOf(
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FilterParam(
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title = R.string.seed,
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valueRange = 0f..PI.toFloat(),
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roundTo = 3
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),
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FilterParam(
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title = R.string.strength,
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valueRange = 0f..10f,
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roundTo = 3
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),
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)
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), Filter.VHS
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@ -1898,4 +1898,5 @@
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<string name="glitch_variant">Glitch Variant</string>
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<string name="channel_shift">Channel Shift</string>
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<string name="max_offset">Max Offset</string>
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<string name="vhs">VHS</string>
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</resources>
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@ -22,7 +22,7 @@ import com.t8rin.imagetoolbox.core.domain.model.IntegerSize
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import com.t8rin.imagetoolbox.core.domain.transformation.Transformation
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import com.t8rin.imagetoolbox.core.filters.domain.model.Filter
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import com.t8rin.imagetoolbox.core.ksp.annotations.FilterInject
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.Glitcher
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.GlitchTool
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@FilterInject
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internal class AnaglyphFilter(
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@ -35,6 +35,6 @@ internal class AnaglyphFilter(
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override suspend fun transform(
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input: Bitmap,
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size: IntegerSize
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): Bitmap = Glitcher.anaglyph(input, value.toInt())
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): Bitmap = GlitchTool.anaglyph(input, value.toInt())
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}
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@ -23,7 +23,7 @@ import com.t8rin.imagetoolbox.core.domain.model.IntegerSize
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import com.t8rin.imagetoolbox.core.domain.transformation.Transformation
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import com.t8rin.imagetoolbox.core.filters.domain.model.Filter
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import com.t8rin.imagetoolbox.core.ksp.annotations.FilterInject
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.Glitcher
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.GlitchTool
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import kotlinx.coroutines.coroutineScope
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import java.io.ByteArrayOutputStream
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@ -38,7 +38,7 @@ internal class GlitchFilter(
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override suspend fun transform(
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input: Bitmap,
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size: IntegerSize
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): Bitmap = Glitcher.glitch(
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): Bitmap = GlitchTool.glitch(
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bitmap = coroutineScope {
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ByteArrayOutputStream().use {
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input.compress(Bitmap.CompressFormat.JPEG, 100, it)
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@ -22,7 +22,7 @@ import com.t8rin.imagetoolbox.core.domain.model.IntegerSize
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import com.t8rin.imagetoolbox.core.domain.transformation.Transformation
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import com.t8rin.imagetoolbox.core.filters.domain.model.Filter
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import com.t8rin.imagetoolbox.core.ksp.annotations.FilterInject
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.Glitcher
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.GlitchTool
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import kotlin.math.roundToInt
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@FilterInject
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@ -36,7 +36,7 @@ internal class GlitchVariantFilter(
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override suspend fun transform(
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input: Bitmap,
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size: IntegerSize
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): Bitmap = Glitcher.glitchVariant(
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): Bitmap = GlitchTool.glitchVariant(
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src = input,
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iterations = value.first.roundToInt(),
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maxOffset = value.second,
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@ -0,0 +1,44 @@
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/*
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* ImageToolbox is an image editor for android
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* Copyright (c) 2025 T8RIN (Malik Mukhametzyanov)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* You should have received a copy of the Apache License
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* along with this program. If not, see <http://www.apache.org/licenses/LICENSE-2.0>.
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*/
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package com.t8rin.imagetoolbox.feature.filters.data.model
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import android.graphics.Bitmap
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import com.t8rin.imagetoolbox.core.domain.model.IntegerSize
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import com.t8rin.imagetoolbox.core.domain.transformation.Transformation
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import com.t8rin.imagetoolbox.core.filters.domain.model.Filter
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import com.t8rin.imagetoolbox.core.ksp.annotations.FilterInject
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import com.t8rin.imagetoolbox.feature.filters.data.utils.glitch.GlitchTool
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@FilterInject
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internal class VHSFilter(
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override val value: Pair<Float, Float> = 2f to 3f,
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) : Transformation<Bitmap>, Filter.VHS {
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override val cacheKey: String
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get() = value.hashCode().toString()
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override suspend fun transform(
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input: Bitmap,
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size: IntegerSize
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): Bitmap = GlitchTool.vhsGlitch(
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src = input,
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time = value.first,
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strength = value.second
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)
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}
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@ -31,9 +31,10 @@ import androidx.core.graphics.createBitmap
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import kotlinx.coroutines.coroutineScope
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import kotlin.math.floor
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import kotlin.math.roundToInt
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import kotlin.math.sin
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import kotlin.random.Random
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internal object Glitcher {
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internal object GlitchTool {
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private val leftArray = floatArrayOf(
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1.0f,
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@ -213,6 +214,75 @@ internal object Glitcher {
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result
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}
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suspend fun vhsGlitch(
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src: Bitmap,
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time: Float = 0f,
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strength: Float = 1f
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): Bitmap = coroutineScope {
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val w = src.width
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val h = src.height
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val lineJitterPx = (w * 0.015f * strength).toInt()
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val rgbShiftPx = (w * 0.008f * strength).toInt()
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val waveAmp = 2f * strength
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val noiseAmp = (20 * strength).toInt()
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val result = src.copy(Bitmap.Config.ARGB_8888, true)
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val pixels = IntArray(w * h)
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val out = IntArray(w * h)
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result.getPixels(pixels, 0, w, 0, 0, w, h)
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for (y in 0 until h) {
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val wave =
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sin((y * 0.06f) + time * 4f) * waveAmp
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val jitter =
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if (Random.nextFloat() < 0.08f * strength)
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Random.nextInt(-lineJitterPx, lineJitterPx + 1)
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else 0
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val row = y * w
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for (x in 0 until w) {
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val baseX = (x + wave + jitter).toInt()
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.coerceIn(0, w - 1)
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val rX = (baseX + rgbShiftPx).coerceIn(0, w - 1)
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val bX = (baseX - rgbShiftPx).coerceIn(0, w - 1)
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val pR = pixels[row + rX]
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val pG = pixels[row + baseX]
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val pB = pixels[row + bX]
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var r = (pR shr 16) and 0xFF
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var g = (pG shr 8) and 0xFF
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var b = pB and 0xFF
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val a = (pG ushr 24)
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val noise = Random.nextInt(-noiseAmp, noiseAmp + 1)
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r = (r + noise).coerceIn(0, 255)
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g = (g + noise).coerceIn(0, 255)
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b = (b + noise).coerceIn(0, 255)
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if ((y % 3) == 0) {
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r = (r * 0.92f).toInt()
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g = (g * 0.92f).toInt()
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b = (b * 0.92f).toInt()
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}
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out[row + x] =
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(a shl 24) or
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(r shl 16) or
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(g shl 8) or
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b
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}
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}
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result.setPixels(out, 0, w, 0, 0, w, h)
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result
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}
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private fun glitchJpegBytes(
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pos: Int,
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