屏幕图像痕迹几乎是黑色

保存显示的PNG图像现在是黑色（或非常接近黑色）而不是以前的颜色。
之前已使用正确的颜色保存图像，如附加图像1那样反转格线。
现在使用非常暗的痕迹捕获图像，如Image2中所示。
唯一可能与这一变化有关的是，该范围在7月份进行了校准。
之前的数据是正确的，最新数据是黑暗的。
如果从示波器的前面板保存或使用命令“：DISP：DATA？PNG，SCR，COL”从程序保存，则为真。
任何人都知道为什么会发生这种情况或如何纠正它？
Image1.png54.7 KB



     以下为原文

  Saving PNG images of display are now black (or very close to black) instead of color as they used to be.
Images had previously been saved with correct colors, graticule inverted as in Image1 attached.
Images are now captured with very dark traces as in Image2.
The only thing that may be related to this change is that the scope went out for calibartion in July.  Data prior to that was correct and latest data is dark.
This is true if saving from the front panel of the scope OR from program with command ":DISP:DATA? PNG,SCR,COL".

Anyone know why this may happen or how to correct it?   
附件

• Image2.png33.5 KB
• Image1.png54.7 KB