Exemplo n.º 1
0
 /// <summary>
 /// To save metadata of file
 /// </summary>
 /// <param name="obj"></param>
 private int saveMetadata(EntityModel.Image obj)
 {
     try
     {
         ent.Images.Add(obj);
         ent.SaveChanges();
         return(obj.ImageId);
     }
     catch (Exception)
     {
         return(0);
     }
 }
Exemplo n.º 2
0
        /// <summary>
        /// Get best match image(s) from database
        /// </summary>
        /// <param name="imgObj"></param>
        /// <returns>return list of best match images List<EntityModel.Image></returns>
        public List <EntityModel.Image> GetImagesByBestMatch(EntityModel.Image imgObj)
        {
            try
            {
                List <EntityModel.Image> matchImageList = null;
                //Best match based on checksum
                matchImageList = ent.Images.Where(p => p.Checksum == imgObj.Checksum && p.ImagePath != imgObj.ImagePath).ToList();
                if (matchImageList.Count() != 0)
                {
                    return(matchImageList);
                }

                //Best match based on image content
                if (imgObj.IsImageContainsText == true)
                {
                    int messageLength = imgObj.Description.Length;
                    matchImageList = ent.Images.Where(p => p.ImagePath != imgObj.ImagePath &&
                                                      p.Description.Contains(imgObj.Description.Substring(0, messageLength / 4)) ||
                                                      p.Description.Contains(imgObj.Description.Substring(messageLength / 4, messageLength / 2)) ||
                                                      p.Description.Contains(imgObj.Description.Substring(messageLength / 2, messageLength * 3 / 4)) ||
                                                      p.Description.Contains(imgObj.Description.Substring(messageLength * 3 / 4, messageLength)) ||
                                                      p.Description.Contains(imgObj.Description.Substring(0, messageLength / 5)) ||
                                                      p.Description.Contains(imgObj.Description.Substring(messageLength * 4 / 5, messageLength))
                                                      ).ToList();
                    if (matchImageList.Count() != 0)
                    {
                        return(matchImageList);
                    }
                }

                //Best match based on metadata
                matchImageList = ent.Images.Where(p => p.Length >= (imgObj.Length - 5000) && p.Length <= (imgObj.Length + 5000) &&
                                                  p.RedPercentage >= (imgObj.RedPercentage - 2) && p.RedPercentage <= (imgObj.RedPercentage + 2) &&
                                                  p.GreenPercentage >= (imgObj.GreenPercentage - 2) && p.GreenPercentage <= (imgObj.GreenPercentage + 2) &&
                                                  p.BluePercentage >= (imgObj.BluePercentage - 2) && p.BluePercentage <= (imgObj.BluePercentage + 2) &&
                                                  p.Width >= (imgObj.Width - 50) && p.Width <= (imgObj.Width + 50) &&
                                                  p.Height >= (imgObj.Height - 50) && p.Height <= (imgObj.Height + 50) &&
                                                  p.IsImageContainsFace == imgObj.IsImageContainsFace &&
                                                  p.IsImageContainsText == imgObj.IsImageContainsText
                                                  ).ToList();

                return(matchImageList);
            }
            catch (Exception)
            {
                throw;
            }
        }