def setup_flower_shutter(rawdata, savedir):
savedir = Path(savedir)
wipe_dirs(savedir)
init_dirs(savedir)
data = imread(rawdata)
data = normalize3(data, 2, 99.6) ## normalize across all dims?
d = SimpleNamespace()
d.net = torch_models.Unet2_2d(16, [[1], [1]], finallayer=nn.ReLU)
d.net.load_state_dict(
torch.load(
'/lustre/projects/project-broaddus/denoise_experiments/flower/models/net_randinit.pt'
))
# d.net.apply(init_weights);
d.savedir = savedir
d.xs = torch.from_numpy(data).float()
d.xs = d.xs.reshape(100, 4, 256, 4, 256,
1).permute(0, 1, 3, 5, 2, 4) #.reshape((-1,256,256))
d.ys = d.xs.mean(0)
io.imsave(savedir / 'xs.png',
collapse2(d.xs[0, :, :, 0].numpy(), "12yx", "1y,2x"))
io.imsave(savedir / 'ys.png',
collapse2(d.ys[:, :, 0].numpy(), "12yx", "1y,2x"))
d.cuda = False
return d
def datagen(params={}, savedir=None):
data = []
times = np.r_[:190]
for i in times:
img = imread(
f'/lustre/projects/project-broaddus/devseg_data/raw/celegans_isbi/Fluo-N3DH-CE/01/t{i:03d}.tif'
)
pmin, pmax = np.random.uniform(1, 3), np.random.uniform(99.5, 99.8)
img = normalize3(img, pmin, pmax).astype(np.float32, copy=False)
slicelist = []
def random_patch():
ss = random_slice(img.shape, (32, 64, 64))
## select patches with interesting content. 0.02 is chosen by manual inspection.
while img[ss].mean() < 0.03:
ss = random_slice(img.shape, (32, 64, 64))
x = img[ss].copy()
slicelist.append(ss)
## augment
# noiselevel = 0.2
# x += np.random.uniform(0,noiselevel,(1,)*3)*np.random.uniform(-1,1,x.shape)
# for d in [0,1,2]:
# if np.random.rand() < 0.5:
# x = np.flip(x,d)
return (x, )
data.append([random_patch() for _ in range(10)]) #ts(xys)czyx
data = np.array(data)
print("data.shape: ", data.shape)
if savedir:
rgb = collapse2(data[:, :, :, 16], 'tscyx', 'ty,sx,c')[..., [0, 0, 0]]
rgb = normalize3(rgb)
io.imsave(savedir / 'data_xy_cele.png', rgb)
rgb = collapse2(data[:, :, :, :, 32], 'tsczx', 'tz,sx,c')[...,
[0, 0, 0]]
rgb = normalize3(rgb)
io.imsave(savedir / 'data_xz_cele.png', rgb)
np.savez_compressed(savedir / 'data_cele.npz', data)
pklsave(slicelist, savedir / 'slicelist_cele.pkl')
return data
def setup(savedir):
savedir = Path(savedir)
wipe_dirs(savedir)
init_dirs(savedir)
# data = cl_datagen2.datagen_self_sup(s=4, savedir=savedir)
# data = cl_datagen2.datagen_all_kinds(savedir=savedir)
data = np.load(
'/lustre/projects/project-broaddus/denoise_experiments/cele/e01/data_cele.npz'
)['arr_0']
# data = datagen(savedir=savedir)
data = collapse2(data[None], 'rtsczyx', 'c,ts,r,z,y,x')[0]
d = SimpleNamespace()
d.net = torch_models.Unet2(16, [[1], [1]], finallayer=nn.ReLU).cuda()
d.net.load_state_dict(
torch.load(
'/lustre/projects/project-broaddus/denoise_experiments/flower/models/net_randinit3D.pt'
))
# d.net.apply(init_weights);
d.savedir = savedir
# torch.save(d.net.state_dict(), '/lustre/projects/project-broaddus/devseg_data/cl_datagen/grid/net_randinit3D.pt')
d.x1_all = torch.from_numpy(data).float().cuda()
return d
def datagen(savedir=None):
# img = imread(f'/lustre/projects/project-broaddus/rawdata/artifacts/flower.tif')[:10]
img = imread(
f'/lustre/projects/project-broaddus/denoise_experiments/flower/e02/pred_flower.tif'
)[:10]
# img = imread(f'/lustre/projects/project-broaddus/rawdata/artifacts/shutterclosed.tif')[0]
print(img.shape)
# pmin, pmax = np.random.uniform(1,3), np.random.uniform(99.5,99.8)
pmin, pmax = 2, 99.6
print(f"pmin = {pmin}; pmax = {pmax}")
img = normalize3(img, pmin, pmax).astype(np.float32, copy=False)
data = img.reshape((-1, 4, 256, 4, 256)).transpose(
(0, 1, 3, 2, 4)).reshape((-1, 1, 256, 256))
# patch_size = (256,256)
# slicelist = []
# def random_patch():
# ss = random_slice(img.shape, patch_size)
# ## select patches with interesting content. FIXME
# while img[ss].mean() < 0.0:
# ss = random_slice(img.shape, patch_size)
# x = img[ss].copy()
# slicelist.append(ss)
# ## augment
# # noiselevel = 0.2
# # x += np.random.uniform(0,noiselevel,(1,)*3)*np.random.uniform(-1,1,x.shape)
# # for d in [0,1,2]:
# # if np.random.rand() < 0.5:
# # x = np.flip(x,d)
# return (x,)
# data = np.array([random_patch() for _ in range(24)])
# data = np.load('../../devseg_data/cl_datagen/d003/data.npz')
print("data.shape: ", data.shape)
#SCZYX
if savedir:
rgb = collapse2(data[:, :], 'scyx', 's,y,x,c')[..., [0, 0, 0]]
rgb = normalize3(rgb)
rgb = plotgrid([rgb], 10)
io.imsave(savedir / 'data_xy_flower.png', rgb)
np.savez_compressed(savedir / 'data_flower.npz',
data=data,
pmin=pmin,
pmax=pmax)
# pklsave(slicelist, savedir/'slicelist2.pkl')
dg = SimpleNamespace()
dg.data = data
dg.pmin = pmin
dg.pmax = pmax
return dg
def train(d, ta=None, end_epoch=300, mask_shape=[1, 2, 3, 4]):
if ta is None: ta = init_training_artifacts()
## set up const variables necessary for training
batch_size = 4
inds = np.arange(0, d.x1_all.shape[0])
patch_size = d.x1_all.shape[2:]
d.w1_all = torch.ones(d.x1_all.shape).float()
## set up variables for monitoring training
# d.eg_xs = d.x1_all[inds[::floor(np.sqrt(len(inds)))]].clone()
d.eg_xs = d.x1_all[[0, 3, 5, 12]].clone()
d.xs_fft = torch.fft((d.eg_xs - d.eg_xs.mean())[..., None][..., [0, 0]],
2).norm(p=2, dim=-1)
d.xs_fft = torch.from_numpy(np.fft.fftshift(d.xs_fft, axes=(-1, -2)))
lossdist = torch.zeros(d.x1_all.shape[0]) - 2
## move everything to cuda
d.net = d.net.cuda()
d.x1_all = d.x1_all.cuda()
d.w1_all = d.w1_all.cuda()
d.xs_fft = d.xs_fft.cuda()
d.eg_xs = d.eg_xs.cuda()
opt = torch.optim.Adam(d.net.parameters(), lr=2e-5)
plt.figure()
for e in range(ta.e, end_epoch + 1):
ta.e = e
np.random.shuffle(inds)
lossdist[...] = -1
print(f"\r epoch {e}", end="")
for b in range(ceil(d.x1_all.shape[0] / batch_size)):
idxs = inds[b * batch_size:(b + 1) * batch_size]
x1 = d.x1_all[idxs] #.cuda()
w1 = d.w1_all[idxs] #.cuda()
def random_pixel_mask():
n = int(np.prod(patch_size) * 0.02)
x_inds = np.random.randint(0, patch_size[1], n)
y_inds = np.random.randint(0, patch_size[0], n)
# z_inds = np.random.randint(0,32,64*64*1)
ma = np.zeros(patch_size)
ma[y_inds, x_inds] = 2
return ma
def sparse_3set_mask():
"build random mask for small number of central pixels"
n = int(np.prod(patch_size) * 0.02)
x_inds = np.random.randint(0, patch_size[1], n)
y_inds = np.random.randint(0, patch_size[0], n)
ma = np.zeros(patch_size)
# ma = binary_dilation(ma)
for i in mask_shape:
m = x_inds - i >= 0
ma[y_inds[m], x_inds[m] - i] = 1
m = x_inds + i < patch_size[1]
ma[y_inds[m], x_inds[m] + i] = 1
# for i in [1]:
# m = y_inds-i >= 0; ma[y_inds[m]-i,x_inds[m]] = 1
# m = y_inds+i < patch_size[0]; ma[y_inds[m]+i,x_inds[m]] = 1
ma = ma.astype(np.uint8)
ma[y_inds, x_inds] = 2
return ma
def checkerboard_mask():
ma = np.indices(patch_size).transpose((1, 2, 0))
ma = np.floor(ma / (1, 256)).sum(-1) % 2 == 0
ma = 2 * ma
if e % 2 == 1: ma = 2 - ma
return ma
ma = sparse_3set_mask()
# ipdb.set_trace()
# return ma
## apply mask to input
w1[:, :] = torch.from_numpy(ma.astype(np.float)).cuda()
x1_damaged = x1.clone()
x1_damaged[w1 > 0] = torch.rand(x1.shape).cuda()[w1 > 0]
y1p = d.net(x1_damaged)
dims = (1, 2, 3) ## all dims except batch
if False:
dx = 0.15 * torch.abs(y1p[:, :, :, 1:] - y1p[:, :, :, :-1])
dy = 0.15 * torch.abs(y1p[:, :, 1:] - y1p[:, :, :-1])
dy = 0.25 * torch.abs(y1p[:, :, :, 1:] - y1p[:, :, :, :-1])
dz = 0.05 * torch.abs(y1p[:, :, 1:] - y1p[:, :, :-1])
c0, c1, c2 = 0.0, 0.15, 1.0
potential = 2e2 * (
(y1p - c0)**2 *
(y1p - c2)**2) ## rough locations for three classes
resid = torch.abs(y1p - x1)**2
loss_per_patch = resid.mean(dims) + dx.mean(
dims
) #+ dy.mean(dims) + dz.mean(dims) #+ potential.mean(dims)
tm = (w1 == 2).float() ## target mask
loss_per_patch = (tm * torch.abs(y1p - x1)**2).sum(dims) / tm.sum(
dims) # + dx.mean(dims) + dy.mean(dims) #+ dz.mean(dims)
# ipdb.set_trace()
# loss_per_patch = (w1 * torch.abs(y1p-y1t)).sum(dims) / w1.sum(dims) #+ 1e-3*(y1p.mean(dims)).abs()
# loss_per_patch = (w1 * -(y1t*torch.log(y1p + 1e-7) + (1-y1t)*torch.log((1-y1p) + 1e-7))).sum(dims) / w1.sum(dims) #+ 1e-2*(y1p.mean(dims)).abs()
lossdist[idxs] = loss_per_patch.detach().cpu()
loss = loss_per_patch.mean()
ta.losses.append(float(loss))
opt.zero_grad()
loss.backward()
opt.step()
## predict on examples and save predictions as images
with torch.no_grad():
example_yp = d.net(d.eg_xs)
# d.xs_fft = d.xs_fft/d.xs_fft.max()
yp_fft = torch.fft(
(example_yp - example_yp.mean())[..., None][..., [0, 0]],
2).norm(p=2, dim=-1) #.cpu().detach().numpy()
yp_fft = torch.from_numpy(
np.fft.fftshift(yp_fft.cpu(), axes=(-1, -2))).cuda()
# yp_fft = yp_fft/yp_fft.max()
rgb = torch.stack([
d.eg_xs, w1[[0] * len(d.eg_xs)] / 2, d.xs_fft, example_yp,
yp_fft
], 0).cpu().detach().numpy()
arr = rgb.copy()
# type,samples,channels,y,x
rgb = normalize3(rgb, axs=(1, 2, 3, 4))
rgb[[2, 4]] = normalize3(rgb[[2, 4]],
pmin=0,
pmax=99.0,
axs=(1, 2, 3, 4))
# return rgb
# remove channels and permute
rgb = collapse2(rgb[:, :, 0], 'tsyx', 'sy,tx')
# arr = collapse2(arr[:,:,0],'tsyx','sy,tx')
with warnings.catch_warnings():
warnings.simplefilter("ignore")
if e % 10 == 0:
io.imsave(d.savedir / f'epochs/rgb_{e:03d}.png', rgb)
if e % 100 == 0:
np.save(d.savedir / f'epochs_npy/arr_{e:03d}.npy', arr)
## plot the loss after each epoch
ta.lossdists.append(lossdist.numpy().copy())
batches_per_epoch = ceil(d.x1_all.shape[0] / batch_size)
x_axis = np.arange(len(ta.losses)) / batches_per_epoch
plt.clf()
plt.plot(x_axis, ta.losses)
# plt.ylim(np.mean(ta.losses)-3*np.std(ta.losses),np.mean(ta.losses)+3*np.std(ta.losses))
plt.yscale('log')
plt.xlabel(f'1 epoch = {batches_per_epoch} batches')
plt.savefig(d.savedir / f'loss.png', dpi=300)
## and save the model state
if e % 50 == 0:
torch.save(d.net.state_dict(), d.savedir / f'models/net{e:03d}.pt')
pklsave(ta.losses, d.savedir / f'losses.pkl')
torch.save(d.net.state_dict(), d.savedir / f'models/net{ta.e:03d}.pt')
return ta
def train(d, ta=None, end_epoch=300, already_on_cuda=False):
if ta is None: ta = init_training_artifacts()
## setup const variables necessary for training
batch_size = 4
inds = np.arange(0, d.xs.shape[0])
patch_size = d.xs.shape[4:]
# xs = d.xs.reshape((100,4,256,4,256)).permute((0,1,3,2,4)) #.reshape((-1,256,256))
# ys = d.xs.mean(0).reshape((4,256,4,256)).permute((0,2,1,3))
d.ws = torch.ones(d.xs.shape).float()
## set up variables for monitoring training
# d.example_xs = d.xs[inds[::floor(np.sqrt(len(inds)))]].clone()
d.example_xs = d.xs[[0, 3, 5, 12], 0, 0].reshape(-1, 1, 256,
256).clone().cpu()
d.xs_fft = torch.fft(
(d.example_xs - d.example_xs.mean())[..., None][..., [0, 0]],
2).norm(p=2, dim=-1)
d.xs_fft = torch.from_numpy(np.fft.fftshift(d.xs_fft, axes=(-1, -2)))
lossdist = torch.zeros(d.xs.shape[0]) - 2
## move vars to gpu
# if d.cuda is False:
d.net = d.net.cuda()
d.xs = d.xs.cuda()
d.ys = d.ys.cuda()
d.xs_fft = d.xs_fft.cuda()
d.example_xs = d.example_xs.cuda()
d.ws = d.ws.cuda()
## initialize optimizer (must be done after moving data to gpu ?)
opt = torch.optim.Adam(d.net.parameters(), lr=2e-4)
plt.figure()
for e in range(ta.e, end_epoch + 1):
ta.e = e
np.random.shuffle(inds)
ta.lossdists.append(lossdist.numpy().copy())
lossdist[...] = -1
print(f"\r epoch {e}", end="")
for b in range(ceil(d.xs.shape[0] / batch_size)):
idxs = inds[b * batch_size:(b + 1) * batch_size]
x1 = d.xs[idxs]
w1 = d.ws[idxs]
# y1 = d.ys[idxs]
x1 = x1.reshape(-1, 1, 256, 256)
y1p = d.net(x1)
# x1 = x1.reshape(-1,4,4,256,256)
# y1p = y1p.reshape(-1,4,4,256,256)
y1p = y1p.reshape(4, 4, 4, 1, 256, 256)
# ipdb.set_trace()
dims = (1, 2, 3, 4, 5) ## all dims except batch
# ipdb.set_trace()
loss_per_patch = ((y1p - d.ys)**2).mean(dims)
# loss_per_patch = (w1 * torch.abs(y1p-y1t)).sum(dims) / w1.sum(dims) #+ 1e-3*(y1p.mean(dims)).abs()
# loss_per_patch = (w1 * -(y1t*torch.log(y1p + 1e-7) + (1-y1t)*torch.log((1-y1p) + 1e-7))).sum(dims) / w1.sum(dims) #+ 1e-2*(y1p.mean(dims)).abs()
lossdist[idxs] = loss_per_patch.detach().cpu()
loss = loss_per_patch.mean()
ta.losses.append(float(loss))
opt.zero_grad()
loss.backward()
opt.step()
## predict on examples and save each epoch
if e % 10 == 0:
with torch.no_grad():
example_yp = d.net(d.example_xs)
## compute fft from predictions
yp_fft = torch.fft(
(example_yp - example_yp.mean())[..., None][..., [0, 0]],
2).norm(p=2, dim=-1) #.cpu().detach().numpy()
## shift frequency domain s.t. zer freq is at center of array
yp_fft = torch.from_numpy(
np.fft.fftshift(yp_fft.cpu(), axes=(-1, -2))).cuda()
## stack (real space, -weights-, real fft, predictions, and prediction fft) along a new dimension
rgb = torch.stack([d.example_xs, d.xs_fft, example_yp, yp_fft],
0).cpu().detach().numpy()
arr = rgb.copy()
## first normalize each type to [0,1] independently
rgb = normalize3(rgb,
axs=(1, 2, 3,
4)) # dims=type,samples,channels,y,x
## then normalize fft's and real-space dims separately
rgb[[1, 3]] = normalize3(rgb[[1, 3]],
pmin=0,
pmax=99.0,
axs=(1, 2, 3, 4))
## remove channels and permute into a 2D image
rgb = collapse2(rgb[:, :, 0], 'tsyx', 'sy,tx')
with warnings.catch_warnings():
warnings.simplefilter("ignore")
if e % 10 == 0:
io.imsave(d.savedir / f'epochs/rgb_{e:03d}.png', rgb)
if e % 100 == 0:
np.save(d.savedir / f'epochs_npy/arr_{e:03d}.npy', arr)
## plot loss
batches_per_epoch = ceil(d.xs.shape[0] / batch_size)
epochs = np.arange(len(ta.losses)) / batches_per_epoch
plt.clf()
plt.plot(epochs, ta.losses)
# plt.ylim(np.mean(ta.losses)-3*np.std(ta.losses),np.mean(ta.losses)+3*np.std(ta.losses))
plt.yscale('log')
plt.xlabel(f'1 epoch = {batches_per_epoch} batches')
plt.savefig(d.savedir / f'loss.png', dpi=300)
## save model weights
if e % 100 == 0:
torch.save(d.net.state_dict(), d.savedir / f'models/net{e:03d}.pt')
pklsave(ta.losses, d.savedir / f'losses.pkl')
torch.save(d.net.state_dict(), d.savedir / f'models/net{ta.e:03d}.pt')
return ta
def train(d, ta=None, end_epoch=301):
if ta is None: ta = init_training_artifacts()
batch_size = 4
inds = np.arange(0, d.x1_all.shape[0])
# example_xs = d.x1_all[inds[::floor(np.sqrt(len(inds)))]].clone()
example_xs = d.x1_all[[0, 3, 5, 12]].clone()
xs_fft = torch.fft((example_xs - example_xs.mean())[..., None][...,
[0, 0]],
2).norm(p=2, dim=-1)
xs_fft = torch.from_numpy(np.fft.fftshift(xs_fft.cpu(),
axes=(-1, -2))).cuda()
opt = torch.optim.Adam(d.net.parameters(), lr=2e-5)
opt2 = torch.optim.Adam(d.net2.parameters(), lr=2e-5)
lossdist = torch.zeros(d.x1_all.shape[0]) - 2
patch_size = d.x1_all.shape[2:]
plt.figure()
for e in range(ta.e, end_epoch):
ta.e = e
np.random.shuffle(inds)
ta.lossdists.append(lossdist.numpy().copy())
lossdist[...] = -1
print(f"\r epoch {e}", end="")
for b in range(ceil(d.x1_all.shape[0] / batch_size)):
idxs = inds[b * batch_size:(b + 1) * batch_size]
x1 = d.x1_all[idxs] #.cuda()
def random_pixel_mask():
n = int(np.prod(patch_size) * 0.02)
x_inds = np.random.randint(0, patch_size[1], n)
y_inds = np.random.randint(0, patch_size[0], n)
# z_inds = np.random.randint(0,32,64*64*1)
ma = np.zeros(patch_size)
ma[y_inds, x_inds] = 2
return ma
def sparse_3set_mask(p=0.02, xs=[1, 2], ys=[]):
"build random mask for small number of central pixels"
n = int(np.prod(patch_size) * p)
x_inds = np.random.randint(0, patch_size[1], n)
y_inds = np.random.randint(0, patch_size[0], n)
ma = np.zeros(patch_size)
# ma = binary_dilation(ma)
for i in xs:
m = x_inds - i >= 0
ma[y_inds[m], x_inds[m] - i] = 1
m = x_inds + i < patch_size[1]
ma[y_inds[m], x_inds[m] + i] = 1
for i in ys:
m = y_inds - i >= 0
ma[y_inds[m] - i, x_inds[m]] = 1
m = y_inds + i < patch_size[0]
ma[y_inds[m] + i, x_inds[m]] = 1
ma = ma.astype(np.uint8)
ma[y_inds, x_inds] = 2
return ma
def checkerboard_mask():
ma = np.indices(patch_size).transpose((1, 2, 0))
ma = np.floor(ma / (1, 256)).sum(-1) % 2 == 0
ma = 2 * ma
if e % 2 == 1: ma = 2 - ma
return ma
ma = sparse_3set_mask(xs=[1, 2]).astype(np.float)
ma2 = sparse_3set_mask(xs=[1, 2]).astype(np.float)
# ipdb.set_trace()
## apply mask to input
ma = torch.from_numpy(ma).cuda()
x1_damaged = x1.clone()
x1_damaged[:, :, ma > 0] = torch.rand(x1.shape).cuda()[:, :,
ma > 0]
y1p = d.net(x1_damaged)
ma2 = torch.from_numpy(ma2).cuda()
y1p_damaged = y1p.clone()
y1p_damaged[:, :, ma2 > 0] = torch.rand(y1p.shape).cuda()[:, :,
ma2 > 0]
y2p = d.net2(y1p)
dims = (1, 2, 3) ## all dims except batch
tm1 = (ma == 2).float().repeat(4, 1, 1, 1) ## target mask
tm2 = (ma2 == 2).float().repeat(4, 1, 1, 1)
loss_per_patch = (tm1 *
torch.abs(y1p - x1)**2).sum(dims) / tm1.sum(dims)
loss_per_patch += (
tm2 * torch.abs(y2p - y1p)**2).sum(dims) / tm2.sum(dims)
lossdist[idxs] = loss_per_patch.detach().cpu()
loss = loss_per_patch.mean()
ta.losses.append(float(loss))
opt.zero_grad()
opt2.zero_grad()
loss.backward()
opt.step()
opt2.step()
## predict on examples and save each epoch
with torch.no_grad():
example_yp = d.net(example_xs)
example_yp2 = d.net2(example_yp)
yp_fft = torch.fft(
(example_yp2 - example_yp2.mean())[..., None][..., [0, 0]],
2).norm(p=2, dim=-1) #.cpu().detach().numpy()
yp_fft = torch.from_numpy(
np.fft.fftshift(yp_fft.cpu(), axes=(-1, -2))).cuda()
# yp_fft = yp_fft/yp_fft.max()
rgb = torch.stack([
example_xs,
ma.float().repeat(4, 1, 1, 1) / 2, xs_fft, example_yp2, yp_fft
], 0).cpu().detach().numpy()
arr = rgb.copy()
# type,samples,channels,y,x
rgb = normalize3(rgb, axs=(1, 2, 3, 4))
rgb[[2, 4]] = normalize3(rgb[[2, 4]],
pmin=0,
pmax=99.0,
axs=(1, 2, 3, 4))
# remove channels and permute
rgb = collapse2(rgb[:, :, 0], 'tsyx', 'sy,tx')
# arr = collapse2(arr[:,:,0],'tsyx','sy,tx')
with warnings.catch_warnings():
warnings.simplefilter("ignore")
if e % 10 == 0:
io.imsave(d.savedir / f'epochs/rgb_{e:03d}.png', rgb)
if e % 100 == 0:
np.save(d.savedir / f'epochs_npy/arr_{e:03d}.npy', arr)
batches_per_epoch = ceil(d.x1_all.shape[0] / batch_size)
epochs = np.arange(len(ta.losses)) / batches_per_epoch
plt.clf()
plt.plot(epochs, ta.losses)
# plt.ylim(np.mean(ta.losses)-3*np.std(ta.losses),np.mean(ta.losses)+3*np.std(ta.losses))
plt.yscale('log')
plt.xlabel(f'1 epoch = {batches_per_epoch} batches')
plt.savefig(d.savedir / f'loss.png', dpi=300)
if e % 100 == 0:
torch.save(d.net.state_dict(), savedir / f'models/net{e:03d}.pt')
pklsave(ta.losses, d.savedir / f'losses.pkl')
torch.save(d.net.state_dict(), d.savedir / f'models/net{ta.e:03d}.pt')
return ta