A quick, simple and lightweight batch image converter powered by Windows. Supporting convertering between BMP, JPEG, JPEG-XR, GIF, TIFF, DDS, PNG, RAW, HEIF, ICO.
Image compression for Android in Kotlin. GitHub Gist: instantly share code, notes, and snippets.

Jpg Compressor
Download Bitmap Image To Jpg Converter Marcus Reid X

JPEG to JPG - Free Online Converter. JPG is the file format for images made by digital cameras and spread throughout the world wide web. Saving in JPG format an image loses its quality, because of the size compression. But at the end you have a much smaller file easy to archive, send, and publish in the web.

BitmapUtils.kt

classBitmapUtils {

companionobject

}

fun BitmapUtils.Companion.getCompressedImage(pathName:String, scalingLogic:ImageView.ScaleType): String {

val options =BitmapFactory.Options()

options.inJustDecodeBounds =true

BitmapFactory.decodeFile(pathName, options)

options.inJustDecodeBounds =false

val dstWidth:Double= ((options.outWidth.toDouble() / (options.outWidth.toDouble() * options.outHeight.toDouble())) *1000) * options.outWidth.toDouble()

val dstHeight:Double= ((options.outHeight.toDouble() / (options.outWidth.toDouble() * options.outHeight.toDouble())) *1000) * options.outHeight.toDouble()

options.inSampleSize = calculateSampleSize(options.outWidth, options.outHeight, dstWidth.toInt(), dstHeight.toInt(), scalingLogic)

val unscaledBitmap =BitmapFactory.decodeFile(pathName, options)

return createScaledBitmap(unscaledBitmap, dstWidth.toInt(), dstHeight.toInt(), scalingLogic)

}

privatefuncreateScaledBitmap(unscaledBitmap:Bitmap, dstWidth:Int, dstHeight:Int, scalingLogic:ImageView.ScaleType): String {

val srcRect = calculateSrcRect(unscaledBitmap.width, unscaledBitmap.height, dstWidth, dstHeight, scalingLogic)

val dstRect = calculateDstRect(unscaledBitmap.width, unscaledBitmap.height, dstWidth, dstHeight, scalingLogic)

val scaledBitmap =Bitmap.createBitmap(dstRect.width(), dstRect.height(), Bitmap.Config.ARGB_8888)

val canvas =Canvas(scaledBitmap)

canvas.drawBitmap(unscaledBitmap, srcRect, dstRect, Paint(Paint.FILTER_BITMAP_FLAG))

return writeToFile(scaledBitmap)

}

privatefunwriteToFile(scaledBitmap:Bitmap): String {

val f:File=File(Environment.getExternalStorageDirectory(), '${DateTime().millisOfDay()}.png');

f.createNewFile();

//Convert bitmap to byte array

val bos:ByteArrayOutputStream=ByteArrayOutputStream();

scaledBitmap.compress(Bitmap.CompressFormat.PNG, 0/*ignored for PNG*/, bos);

//write the bytes in file

val fos:FileOutputStream=FileOutputStream(f)

fos.write(bos.toByteArray());

fos.flush();

fos.close();

return f.absolutePath

}

privatefuncalculateSampleSize(srcWidth:Int, srcHeight:Int, dstWidth:Int, dstHeight:Int, scalingLogic:ImageView.ScaleType): Int {

if (scalingLogic ImageView.ScaleType.FIT_CENTER) {

val srcAspect = srcWidth.toFloat() / srcHeight.toFloat()

val dstAspect = dstWidth.toFloat() / dstHeight.toFloat()

if (srcAspect > dstAspect) {

return srcWidth / dstWidth

} else {

return srcHeight / dstHeight

}

} else {

val srcAspect = srcWidth.toFloat() / srcHeight.toFloat()

val dstAspect = dstWidth.toFloat() / dstHeight.toFloat()

if (srcAspect > dstAspect) {

return srcHeight / dstHeight

} else {

return srcWidth / dstWidth

}

privatefuncalculateSrcRect(srcWidth:Int, srcHeight:Int, dstWidth:Int, dstHeight:Int, scalingLogic:ImageView.ScaleType): Rect {

if (scalingLogic ImageView.ScaleType.CENTER_CROP) {

val srcAspect = srcWidth.toFloat() / srcHeight.toFloat()

val dstAspect = dstWidth.toFloat() / dstHeight.toFloat()

if (srcAspect > dstAspect) {

val srcRectWidth = (srcHeight * dstAspect).toInt()

val srcRectLeft = (srcWidth - srcRectWidth) /2

returnRect(srcRectLeft, 0, srcRectLeft + srcRectWidth, srcHeight)

} else {

val srcRectHeight = (srcWidth / dstAspect).toInt()

val scrRectTop = (srcHeight - srcRectHeight).toInt() /2

returnRect(0, scrRectTop, srcWidth, scrRectTop + srcRectHeight)

}

} else {

returnRect(0, 0, srcWidth, srcHeight)

}

privatefuncalculateDstRect(srcWidth:Int, srcHeight:Int, dstWidth:Int, dstHeight:Int, scalingLogic:ImageView.ScaleType): Rect {

if (scalingLogic ImageView.ScaleType.FIT_CENTER) {

val srcAspect = srcWidth.toFloat() / srcHeight.toFloat()

Download Bitmap Image To Jpg Convertermarcus Reid