I need help with my MATLAB code. Here is my code. A $=[123$; $456$; $789]$;

$[$U$,$ S$,$ V$]=$ svd $($A$)$;

A$1=$ U$($:$,1)*$ S$(1,1)*$ V$($:$,1)\text{'}$;

RMSE$\_$A$1=$ sqrt$($mean$(($A$($:$)-$ A$1($:$)).^2))$; d$1=$ dot$($U$($:$,1),$ U$($:$,2))$;

cross$\_$product $=$ cross$($U$($:$,1),$ U$($:$,2))$; span$\_$U $=$ rank$($U$)==$ min$($size$($U$))$; load $(\text{'}$MAT $350$ Project Two MATLAB Image.mat'$)$;

imshow$($A$)$;

$[$m$,$ n$]=$ size $($A$)$ k$\_$CR$2=$ floor$($original$\_$size $/2)$;

image$\_$approx$\_$CR$2=$ U$($:$,1$:k$\_$CR$2)*$ S$(1$:k$\_$CR$2,1$:k$\_$CR$2)*$ V$($:$,1$:k$\_$CR$2)\text{'}$; This is the part im having trouble with. my code here says "unrecognized function or variable image". not sure what to do here. RMSE$\_$img $=$ sqrt$($mean$(($image$($:$)-$ image$\_$approx$\_$CR$2($:$)).^2))$; imshow$($image$\_$approx$\_$CR$2)$; $\%$ For CR $10$

k$\_$CR$10=$ floor$($original$\_$size $/10)$;

image$\_$approx$\_$CR$10=$ U$($:$,1$:k$\_$CR$10)*$ S$(1$:k$\_$CR$10,1$:k$\_$CR$10)*$ V$($:$,1$:k$\_$CR$10)\text{'}$;

RMSE$\_$CR$10=$ sqrt$($mean$(($image$($:$)-$ image$\_$approx$\_$CR$10($:$)).^2))$;

$\%$ For CR $25$

k$\_$CR$25=$ floor$($original$\_$size $/25)$;

image$\_$approx$\_$CR$25=$ U$($:$,1$:k$\_$CR$25)*$ S$(1$:k$\_$CR$25,1$:k$\_$CR$25)*$ V$($:$,1$:k$\_$CR$25)\text{'}$;

RMSE$\_$CR$25=$ sqrt$($mean$(($image$($:$)-$ image$\_$approx$\_$CR$25($:$)).^2))$;

$\%$ For CR $75$

k$\_$CR$75=$ floor$($original$\_$size $/75)$;

image$\_$approx$\_$CR$75=$ U$($:$,1$:k$\_$CR$75)*$ S$(1$:k$\_$CR$75,1$:k$\_$CR$75)*$ V$($:$,1$:k$\_$CR$75)\text{'}$;

RMSE$\_$CR$75=$ sqrt$($mean$(($image$($:$)-$ image$\_$approx$\_$CR$75($:$)).^2))$;

$\%$ Analyze the trends observed in image approximation as the compression ratio increases

$\%$ Based on the RMSE values obtained for different compression ratios, make recommendations for the best compression ratio

$\%$ Displaying the approximate images for CR $10,25,$ and $75$

imshow$($image$\_$approx$\_$CR$10)$;

imshow$($image$\_$approx$\_$CR$25)$;

imshow$($image$\_$approx$\_$CR$75)$;