/// <summary> /// Converte a imagem para tons de cinzento /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void grayToolStripMenuItem_Click(object sender, EventArgs e) { if (img == null) // protege de executar a função sem ainda ter aberto a imagem { return; } Cursor = Cursors.WaitCursor; // cursor relogio //copy Undo Image imgUndo = img.Copy(); ImageClass.ConvertToGray(img); ImageViewer.Refresh(); // atualiza imagem no ecrã Cursor = Cursors.Default; // cursor normal }
/// <summary> /// Call image convertion to gray scale /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void grayToolStripMenuItem_Click(object sender, EventArgs e) { if (img == null) // verify if the image is already opened { return; } Cursor = Cursors.WaitCursor; // clock cursor //copy Undo Image imgUndo = img.Copy(); ImageClass.ConvertToGray(img); ImageViewer.Image = img.Bitmap; ImageViewer.Refresh(); // refresh image on the screen Cursor = Cursors.Default; // normal cursor }