/// <summary>
/// Uses the Microsoft Vision API to generate a picture that crops automatically to whatever size you choose.
/// </summary>
/// <param name="originalSourcePath">The original SourcePath to a file on Device OR An url to a picture</param>
/// <param name="width">Width of the cropped image</param>
/// <param name="height">Height of the cropped image</param>
/// <param name="addToFilename">What string should be after the originalSourcePath. if original is img20161203.jpg and addToFileName is -thumbnail then the outcome will be img20161203-thumbnail.jpg</param>
/// <param name="removeFromOriginalSourceFilename">a string that should be removed from original source ex. originalSourcepath = "Image-fullImage.jpg" removeFromOriginalSourceFilename = "-fullImage" the resulting path string will be "Image"+"addToFilename+".jpg"</param>
/// <returns></returns>
async public Task <string> SmartCrop(string originalSourcePath, int width, int height, string addToFilename, string removeFromOriginalSourceFilename = null)
{
string newPath = null;
if (string.IsNullOrEmpty(VisionApi.Key))
{
throw new Exception("You must set VisionApi.Key");
}
var originalBytes = File.ReadAllBytes(originalSourcePath);
var thumbNailByteArray = await VisionApi.GetThumbNail(originalBytes, VisionApi.Key, width, height);
var orSourcePath = originalSourcePath;
if (!string.IsNullOrEmpty(removeFromOriginalSourceFilename))
{
orSourcePath = orSourcePath.Replace(removeFromOriginalSourceFilename, "");
}
var extension = orSourcePath.Substring(orSourcePath.LastIndexOf("."));
newPath = orSourcePath.Replace(extension, addToFilename + extension);
File.WriteAllBytes(newPath, thumbNailByteArray);
return(newPath);
}
/// <summary>
/// Uses the Microsoft Vision API to generate a picture that crops automatically to whatever size you choose.
/// </summary>
/// <param name="stream">Stream of an image that is used to send to Vision api</param>
/// <param name="width">Width of the cropped image</param>
/// <param name="height">Height of the cropped image</param>
/// <returns>Byte array of new image</returns>
async public Task <byte[]> SmartCrop(Stream stream, int width, int height)
{
if (stream.Length > 4000000)
{
throw new NotSupportedException("You are trying to SmartCrop a Stream that is bigger than 4Mb");
}
return(await VisionApi.GetThumbNail(stream.ToByteArray(), width, height));
}
/// <summary>
/// Uses the Microsoft Vision API to generate a picture that crops automatically to whatever size you choose.
/// </summary>
/// <param name="stream">Stream of an image that is used to send to Vision api</param>
/// <param name="width">Width of the cropped image</param>
/// <param name="height">Height of the cropped image</param>
/// <param name="newFilePath">path to file that is going to be created</param>
/// <returns>The path to the cropped image</returns>
async public Task <string> SmartCrop(Stream stream, int width, int height, string newFilePath)
{
if (stream.Length > 4000000)
{
throw new NotSupportedException("You are trying to SmartCrop a Stream that is bigger than 4Mb");
}
var thumbNailByteArray = await VisionApi.GetThumbNail(stream.ToByteArray(), width, height);
File.WriteAllBytes(newFilePath, thumbNailByteArray);
return(newFilePath);
}
/// <summary>
/// Uses the Microsoft Vision API to generate a picture that crops automatically to whatever size you choose.
/// </summary>
/// <param name="originalSourcePath">The original SourcePath to a file on Device OR An url to a picture</param>
/// <param name="width">Width of the cropped image</param>
/// <param name="height">Height of the cropped image</param>
/// <returns>Byte array of new image</returns>
async public Task <byte[]> SmartCrop(string originalSourcePath, int width, int height)
{
if (originalSourcePath.IsUrl())
{
return(await VisionApi.GetThumbNail(originalSourcePath, width, height));
}
else
{
var downSampledPath = await FixMaxImageSize(originalSourcePath, 4000000);
var originalBytes = File.ReadAllBytes(downSampledPath);
return(await VisionApi.GetThumbNail(originalBytes, width, height));
}
}
/// <summary>
/// Uses the Microsoft Vision API to generate a picture that crops automatically to whatever size you choose.
/// </summary>
/// <param name="originalSourcePath">The original SourcePath to a file on Device OR An url to a picture</param>
/// <param name="width">Width of the cropped image</param>
/// <param name="height">Height of the cropped image</param>
/// <param name="addToFilename">What string should be after the originalSourcePath. if original is img20161203.jpg and addToFileName is -thumbnail then the outcome will be img20161203-thumbnail.jpg</param>
/// <param name="removeFromOriginalSourceFilename">a string that should be removed from original source ex. originalSourcepath = "Image-fullImage.jpg" removeFromOriginalSourceFilename = "-fullImage" the resulting path string will be "Image"+"addToFilename+".jpg"</param>
/// <returns></returns>
public async Task <string> SmartCrop(string originalSourcePath, int width, int height, string addToFilename, string removeFromOriginalSourceFilename = null)
{
string newPath = null;
byte[] thumbNailByteArray = null;
if (originalSourcePath.IsUrl())
{
thumbNailByteArray = await VisionApi.GetThumbNail(originalSourcePath, width, height);
}
else
{
var downSampledPath = await FixMaxImageSize(originalSourcePath, 4000000);
var originalBytes = File.ReadAllBytes(downSampledPath);
thumbNailByteArray = await VisionApi.GetThumbNail(originalBytes, width, height);
}
newPath = SetupNewSourcePath(originalSourcePath, removeFromOriginalSourceFilename, addToFilename);
File.WriteAllBytes(newPath, thumbNailByteArray);
return(newPath);
}