private void corToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (colorDialog.ShowDialog() == DialogResult.OK)
            {
                image = new Bitmap(800, 600);
                Color c = colorDialog.Color;
                DMA.preencher((Bitmap)image, c.R, c.G, c.B);
                pictureBox.Image = image;

                matHsiOriginal = new int[image.Width, image.Height, 3];
                matHsi         = new int[image.Width, image.Height, 3];

                DMA.bmpToHsi((Bitmap)image, matHsi);
                DMA.bmpToHsi((Bitmap)image, matHsiOriginal);
            }
        }
        private void abrirToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog.FileName = "";
            openFileDialog.Filter   = "Arquivos de Imagem (*.jpg;*.gif;*.bmp;*.png)|*.jpg;*.gif;*.bmp;*.png";
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                image = Image.FromFile(openFileDialog.FileName);
                if (image != null)
                {
                    pictureBox.Image    = image;
                    pictureBox.SizeMode = PictureBoxSizeMode.Normal;

                    matHsiOriginal = new int[image.Width, image.Height, 3];
                    matHsi         = new int[image.Width, image.Height, 3];

                    DMA.bmpToHsi((Bitmap)image, matHsiOriginal);
                    DMA.bmpToHsi((Bitmap)image, matHsi);
                }
            }
        }