/// <summary>
/// Performs a Sharpen effect using a Gaussian distribution from the ImageProcessor library..
/// </summary>
/// <param name="image">The image with which to apply the effect.</param>
/// <param name="size">The size of the kernel used to perform the blur.</param>
/// <returns>A new image with the Sharpen effect applied.</returns>
public Image GaussianSharpen(Image image, int size)
{
using var factory = new ImageFactory();
factory.Load(image);
factory.GaussianSharpen(size);
var result = factory.Image;
return(new Bitmap(result));
}
public override void ProcessImage(ref ImageFactory imageFactory)
{
imageFactory.Resize(new Size(512, 512));
imageFactory.Pixelate(12);
imageFactory.GaussianSharpen(20);
imageFactory.Brightness(50);
imageFactory.Contrast(50);
imageFactory.Filter(ImageProcessor.Imaging.Filters.Photo.MatrixFilters.Invert);
MemoryStream stream = new MemoryStream();
imageFactory.Save(stream);
imageFactory.Reset();
imageFactory.Load(stream);
imageFactory.Saturation(100);
channel.SendMessage("PUNT");
}
public ImagePreviewResponse Preview(string imageId, string containerName, string imageFormat, int brightness, int contrast, int saturation, int sharpness, bool sepia, bool polaroid, bool greyscale)
{
var response = new ImagePreviewResponse();
//Create the id for the enhanced "preview" version of the source image
string enhancedImageId = Guid.NewGuid().ToString();
var outputFormatString = string.Empty;
ISupportedImageFormat outputFormatProcessorProperty = null;
System.Drawing.Imaging.ImageFormat outputFormatSystemrawingFormat = null;
#region Select image format, or send error
switch (imageFormat)
{
case "jpg":
outputFormatString = ".jpg";
outputFormatProcessorProperty = new JpegFormat {
Quality = 90
};
outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case "gif":
outputFormatString = ".gif";
outputFormatProcessorProperty = new GifFormat {
};
outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Gif;
break;
case "png":
outputFormatString = ".png";
outputFormatProcessorProperty = new PngFormat {
};
outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Png;
break;
case "bmp":
outputFormatString = ".bmp";
outputFormatProcessorProperty = new BitmapFormat {
};
outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Bmp;
break;
case "tiff":
outputFormatString = ".tiff";
outputFormatProcessorProperty = new TiffFormat {
};
outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Tiff;
break;
default:
return(new ImagePreviewResponse {
isSuccess = false, ErrorMessage = "Please please use a supported file format: jpg, png, gif, bmp or tiff."
});
}
#endregion
#region verify all input parameters, or send error
if (
brightness < -100 || brightness > 100 ||
sharpness < -100 || sharpness > 100 ||
contrast < -100 || contrast > 100 ||
saturation < -100 || saturation > 100
)
{
return(new ImagePreviewResponse {
isSuccess = false, ErrorMessage = "Please pass in a value between -100 and 100 for all enhancement parameters"
});
}
#endregion
//Build out response object
response.ImageID = enhancedImageId;
response.FileName = enhancedImageId + outputFormatString;
response.SourceFile = imageId + outputFormatString;
#region Connect to Intermediary Storage
// Credentials are from centralized CoreServiceSettings
StorageCredentials storageCredentials = new StorageCredentials(CoreServices.PlatformSettings.Storage.IntermediaryName, CoreServices.PlatformSettings.Storage.IntermediaryKey);
var storageAccount = new CloudStorageAccount(storageCredentials, false);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
#endregion
try
{
//Pull down the source image as MemoryStream from Blob storage and apply image enhancement properties
using (MemoryStream sourceStream = Common.GetAssetFromIntermediaryStorage(response.SourceFile, containerName, blobClient))
{
#region Image Processor & Storage
using (MemoryStream outStream = new MemoryStream())
{
using (ImageFactory imageFactory = new ImageFactory())
{
// Load, resize, set the format and quality and save an image.
// Applies all in order...
sourceStream.Position = 0;
imageFactory.Load(sourceStream);
if (brightness != 0)
{
imageFactory.Brightness(brightness);
}
if (contrast != 0)
{
imageFactory.Contrast(contrast);
}
if (saturation != 0)
{
imageFactory.Saturation(saturation);
}
//Sharpness
if (sharpness != 0)
{
imageFactory.GaussianSharpen(sharpness);
}
//Filters
if (sepia == true)
{
imageFactory.Filter(MatrixFilters.Sepia);
}
if (polaroid == true)
{
imageFactory.Filter(MatrixFilters.Polaroid);
}
if (greyscale == true)
{
imageFactory.Filter(MatrixFilters.GreyScale);
}
imageFactory.Save(outStream);
}
//Store each image size to BLOB STORAGE ---------------------------------
#region BLOB STORAGE
//Creat/Connect to the Blob Container
//blobClient.GetContainerReference(containerName).CreateIfNotExists(BlobContainerPublicAccessType.Blob); //<-- Create and make public
CloudBlobContainer blobContainer = blobClient.GetContainerReference(containerName);
//Get reference to the picture blob or create if not exists.
CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(response.FileName);
//Save to storage
//Convert final BMP to byteArray
Byte[] finalByteArray;
finalByteArray = outStream.ToArray();
//Store the enhanced "preview" into the same container as the soure
blockBlob.UploadFromByteArray(finalByteArray, 0, finalByteArray.Length);
#endregion
}
#endregion
}
}
catch (Exception e)
{
return(new ImagePreviewResponse {
isSuccess = false, ErrorMessage = e.Message
});
}
//Marke as successful and return the new ImageID and FileName back to the client for previewing:
response.isSuccess = true;
return(response);
}
public DataAccessResponseType ProcessApplicationImage(string accountId, string storagePartition, string sourceContainerName, string sourceFileName, int formatWidth, int formatHeight, string folderName, string type, int quality, ImageCropCoordinates imageCropCoordinates, ImageEnhancementInstructions imageEnhancementInstructions)
{
//Create image id and response object
string imageId = System.Guid.NewGuid().ToString();
var response = new DataAccessResponseType();
//var imageSpecs = Sahara.Core.Settings.Imaging.Images.ApplicationImage;
//var setSizes = imageSpecs.SetSizes;
//var folderName = imageSpecs.ParentName;
//-------------------------------------------------
// REFACTORING NOTES
//-------------------------------------------------
// In this scenario we have ApplicationImages hard coded to 600x300 for the LARGE size. We then create a medium and small dynmically (as well as a thumbnail hardcoded to 96px tall)(specific sizes can be factored in if required).
// In extended scenarios we can pass these specs from CoreServices to clients via a call or from a Redis Cache or WCF fallback.
// In scenarios where accounts have "Flexible Schemas" we can retreive these properties from a Redis or WCF call for each account based on that accounts set properties.
//-----------------------------------------------------------------------------
//var largeSize = new ApplicationImageSize{X=600, Y=300, Name="Large", NameKey = "large"};
//var mediumSize = new ApplicationImageSize { X = Convert.ToInt32(largeSize.X / 1.25), Y = Convert.ToInt32(largeSize.Y / 1.25), Name = "Medium", NameKey = "medium" }; //<-- Med is 1/1.25 of large
//var smallSize = new ApplicationImageSize { X = largeSize.X / 2, Y = largeSize.Y / 2, Name = "Small", NameKey = "small" }; //<-- Small is 1/2 of large
//We calculate thumbnail width based on a set height of 96px.
//Must be a Double and include .0 in calculation or will ALWAYS calculate to 0!
//double calculatedThumbnailWidth = ((96.0 / largeSize.Y) * largeSize.X); //<-- Must be a Double and include .0 or will calculate to 0!
//var thumbnailSize = new ApplicationImageSize { X = (int)calculatedThumbnailWidth, Y = 96, Name = "Thumbnail", NameKey = "thumbnail" }; //<-- Thumbnail is 96px tall, width is calculated based on this
//We are going to loop through each size during processing
//var setSizes = new List<ApplicationImageSize> { largeSize, mediumSize, smallSize, thumbnailSize };
//Folder name within Blob storage for application image collection
//var folderName = "applicationimages"; //" + imageId; //<-- Each image lives within a folder named after it's id: /applicationimages/[imageid]/[size].jpg
//Image Format Settings
var outputFormatString = "." + type;
ISupportedImageFormat outputFormatProcessorProperty; // = new JpegFormat { Quality = 90 }; // <-- Format is automatically detected though can be changed.
//ImageFormat outputFormatSystemrawingFormat; // = System.Drawing.Imaging.ImageFormat.Jpeg;
if (type == "gif")
{
outputFormatProcessorProperty = new GifFormat {
Quality = quality
}; // <-- Format is automatically detected though can be changed.
//outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Gif;
}
else if (type == "png")
{
outputFormatProcessorProperty = new PngFormat {
Quality = quality
}; // <-- Format is automatically detected though can be changed.
//outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Png;
}
else
{
outputFormatProcessorProperty = new JpegFormat {
Quality = quality
}; // <-- Format is automatically detected though can be changed.
//outputFormatSystemrawingFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
}
/**/
//TO DO: IF ASPECT RATIO EXISTS THEN WE DETRIMINE THE SET SIZE (1 only) by method
//Create instance of ApplicationImageDocumentModel to store image details into DocumentDB
// var applicationImageDocumentModel = new ApplicationImageDocumentModel();
//applicationImageDocumentModel.Id = imageId;
// applicationImageDocumentModel.FilePath = folderName; //<--Concatenates with each FileName for fil location
//Note: We store all images in a single folder to make deletions more performant
// applicationImageDocumentModel.FileNames = new ApplicationImageFileSizes();
//Get source file as MemoryStream from Blob storage and apply image processing tasks to each spcification
using (MemoryStream sourceStream = Common.GetAssetFromIntermediaryStorage(sourceContainerName, sourceFileName))
{
//var sourceBmp = new Bitmap(sourceStream); //<--Convert to BMP in order to run verifications
//Verifiy Image Settings Align With Requirements
/*
* var verifySpecsResponse = Common.VerifyCommonImageSpecifications(sourceBmp, imageSpecs);
* if (!verifySpecsResponse.isSuccess)
* {
* //return if fails
* return verifySpecsResponse;
* }*/
//Assign properties to the DocumentDB Document representation of this image
//applicationImageDocumentModel.FileNames.Large = "large" + outputFormatString;
//applicationImageDocumentModel.FileNames.Medium = "medium" + outputFormatString;
//applicationImageDocumentModel.FileNames.Small = "small" + outputFormatString;
//a/pplicationImageDocumentModel.FileNames.Thumbnail = "thumbnail" + outputFormatString;
//Create 3 sizes (org, _sm & _xs)
//List<Size> imageSizes = new List<Size>();
Dictionary <Size, string> imageSizes = new Dictionary <Size, string>();
imageSizes.Add(new Size(formatWidth, formatHeight), ""); //<-- ORG (no apennded file name)
imageSizes.Add(new Size(formatWidth / 2, formatHeight / 2), "_sm"); //<-- SM (Half Size)
imageSizes.Add(new Size(formatWidth / 4, formatHeight / 4), "_xs"); //<-- XS (Quarter Size)
foreach (KeyValuePair <Size, string> entry in imageSizes)
{
Size processingSize = entry.Key;
string appendedFileName = entry.Value;
#region Image Processor & Storage
//Final location for EACH image will be: http://[uri]/[containerName]/[imageId]_[size].[format]
var filename = imageId + appendedFileName + outputFormatString; //<-- [imageid][_xx].xxx
var fileNameFull = folderName + "/" + filename; //<-- /applicationimages/[imageid][_xx].xxx
//Size processingSize = new Size(formatWidth, formatHeight);
var resizeLayer = new ResizeLayer(processingSize)
{
ResizeMode = ResizeMode.Crop, AnchorPosition = AnchorPosition.Center
};
using (MemoryStream outStream = new MemoryStream())
{
using (ImageFactory imageFactory = new ImageFactory())
{
// Load, resize, set the format and quality and save an image.
// Applies all in order...
sourceStream.Position = 0; //<-- Have to set position to 0 to makse sure imageFactory.Load starts from the begining.
imageFactory.Load(sourceStream);
if (imageCropCoordinates != null)
{
var cropLayer = new ImageProcessor.Imaging.CropLayer(imageCropCoordinates.Left, imageCropCoordinates.Top, imageCropCoordinates.Right, imageCropCoordinates.Bottom, CropMode.Pixels);
//var cropRectangle = new Rectangle(imageCropCoordinates.Top, imageCropCoordinates.Left);
imageFactory.Crop(cropLayer); //<-- Crop first
imageFactory.Resize(resizeLayer); //<-- Then resize
}
else
{
imageFactory.Resize(resizeLayer);//<-- Resize
}
//Convert to proper format
imageFactory.Format(outputFormatProcessorProperty);
if (imageEnhancementInstructions != null)
{
//Basics ---
if (imageEnhancementInstructions.Brightness != 0)
{
imageFactory.Brightness(imageEnhancementInstructions.Brightness);
}
if (imageEnhancementInstructions.Contrast != 0)
{
imageFactory.Contrast(imageEnhancementInstructions.Contrast);
}
if (imageEnhancementInstructions.Saturation != 0)
{
imageFactory.Saturation(imageEnhancementInstructions.Saturation);
}
// Sharpness ---
if (imageEnhancementInstructions.Sharpen != 0)
{
imageFactory.GaussianSharpen(imageEnhancementInstructions.Sharpen);
}
//Filters ----
if (imageEnhancementInstructions.Sepia == true)
{
imageFactory.Filter(MatrixFilters.Sepia);
}
if (imageEnhancementInstructions.Polaroid == true)
{
imageFactory.Filter(MatrixFilters.Polaroid);
}
if (imageEnhancementInstructions.Greyscale == true)
{
imageFactory.Filter(MatrixFilters.GreyScale);
}
}
imageFactory.Save(outStream);
}
//Store image size to BLOB STORAGE ---------------------------------
#region BLOB STORAGE
//CloudBlobClient blobClient = Sahara.Core.Settings.Azure.Storage.StorageConnections.AccountsStorage.CreateCloudBlobClient();
CloudBlobClient blobClient = Settings.Azure.Storage.GetStoragePartitionAccount(storagePartition).CreateCloudBlobClient();
//Create and set retry policy
IRetryPolicy exponentialRetryPolicy = new ExponentialRetry(TimeSpan.FromMilliseconds(400), 6);
blobClient.DefaultRequestOptions.RetryPolicy = exponentialRetryPolicy;
//Creat/Connect to the Blob Container
blobClient.GetContainerReference(accountId).CreateIfNotExists(BlobContainerPublicAccessType.Blob); //<-- Create and make public
CloudBlobContainer blobContainer = blobClient.GetContainerReference(accountId);
//Get reference to the picture blob or create if not exists.
CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(fileNameFull);
if (type == "gif")
{
blockBlob.Properties.ContentType = "image/gif";
}
else if (type == "png")
{
blockBlob.Properties.ContentType = "image/png";
}
else
{
blockBlob.Properties.ContentType = "image/jpg";
}
//Save to storage
//Convert final BMP to byteArray
Byte[] finalByteArray;
finalByteArray = outStream.ToArray();
blockBlob.UploadFromByteArray(finalByteArray, 0, finalByteArray.Length);
#endregion
}
#endregion
}
}
public IImageTransformer GaussianSharpen(int size)
{
_image.GaussianSharpen(size);
return(this);
}
public override void Apply(ImageFactory fs)
{
fs = fs.GaussianSharpen(new GaussianLayer(size, sigma, threshold));
}