How to get value of PSNR,MSE,SNR of an image and appear it on edittext

I really need help... i have two axes which represent image with noise and filtered image.I have 5 checkboxes that represent 5 noises that i use and 4 checkboxes that represent 4 filters that i use.When i click noise checkbox i want the PSNR,MSE,SNR value of the image is show on the edittext.I'm really stuck at this,hope anyone can help me.Here my current code for checkbox noise.

function checkbox1_Callback(hObject, eventdata, handles)

global noiseImage

fontSize = 13;

if isfield(handles,'imgData')

imgData = handles.imgData;

noiseStr = '';

if get(handles.checkbox1,'Value')

noiseStr = 'Salt & pepper';

imgData = imnoise(imgData,'salt & pepper',0.5);

end

if get(handles.checkbox2,'Value')

if ~isempty(noiseStr)

noiseStr = [noiseStr ', '];

end

noiseStr = [noiseStr 'Gaussian'];

imgData = imnoise(imgData,'gaussian',0.1,0.1);

end

if get(handles.checkbox3,'Value')

if ~isempty(noiseStr)

noiseStr = [noiseStr ', '];

end

noiseStr = [noiseStr 'localvar'];

imgData = imnoise(imgData,'localvar',0.05*rand(size(imgData)));

end

if get(handles.checkbox4,'Value')

if ~isempty(noiseStr)

noiseStr = [noiseStr ', '];

end

noiseStr = [noiseStr 'poisson'];

imgData = imnoise(imgData,'poisson');

end

if get(handles.checkbox5,'Value')

if ~isempty(noiseStr)

noiseStr = [noiseStr ', '];

end

noiseStr = [noiseStr 'speckle'];

imgData = imnoise(imgData,'speckle', 0.3);

end

axes(handles.axes2);

imshow(imgData);

PSNR_1=psnr(imgData, imgData)

mse_1=mse(imgData, imgData)

SNR_1=snr(imgData, imgData)

set(handles.edit6, 'String',num2str(PSNR_1),'FontSize', fontSize);

set(handles.edit7, 'String', mse_1,'FontSize', fontSize);

set(handles.edit8, 'String',num2str(SNR_1),'FontSize', fontSize);

title(['Noise type: ' noiseStr,]);

noiseImage = imgData;