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Jpg保存圖片確認(rèn)質(zhì)量#region Jpg保存圖片確認(rèn)質(zhì)量2
/**//**/3
/**//// <summary>4
/// 保存JPG時用5
/// </summary>6
/// <param name="mimeType"></param>7
/// <returns>得到指定mimeType的ImageCodecInfo</returns>8
private static ImageCodecInfo GetCodecInfo(string mimeType)9
{10
ImageCodecInfo[] CodecInfo = ImageCodecInfo.GetImageEncoders();11
foreach (ImageCodecInfo ici in CodecInfo)12
{13
if (ici.MimeType == mimeType) return ici;14
}15
return null;16
}17
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/**//**/20
/**//// <summary>21
/// 保存為JPEG格式，支持壓縮質(zhì)量選項22
/// </summary>23
/// <param name="bmp"></param>24
/// <param name="FileName"></param>25
/// <param name="Qty">1~100</param>26
/// <returns></returns>27
public void SaveAsJPEG(Image bmp, string FileName, int Qty)28
{29
try30
{31
EncoderParameter p;32
EncoderParameters ps;33
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ps = new EncoderParameters(1);35
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p = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, Qty);37
ps.Param[0] = p;38
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bmp.Save(FileName, GetCodecInfo("image/jpeg"), ps);40
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}43
catch44
{45
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}47
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}